Best movies like Nice Sister-In-Law

A disillusioned Los Angeles based married couple, whose twisted sexual relationship is told exclusively through their own private journal entries.

Gabby's picture perfect marriage to Elliott is jeopardized when she meets Matt, a handsome younger man who ignites a fire and desire within her. Based on the New York Times best-selling novel of the same name.

The Good Sister follows a couple who is working to put their crumbling marriage back together, when the wife receives a letter informing her that she has a long-lost twin sister. First thinking that the new family member will bring the couple closer together, the husband then begins an affair with the sister and discovers that she is treacherous and dangerous.

When she falls in love with a handsome minor, a South Korean housewife finds herself at the center of a sexual scandal and hounded by hungry tabloid journalists. She vows to cut him out of her life but then he reaches the age of legal consent.

Couples split up after a comment at an LA dinner party sets up arguments about how truthful partners are in their relationships.

Twenty year-old Ki-chan lives alone with his father. One day Yoon-seo (Kim Jeong-ah), his stepmother comes to live with them. She tries to be friendly with Ki-chan but he appraoches her as a woman and starts showing her that. Yoon-seo strongly rejects him but he knows that she wants him too. Their relationship turns into something dangerous. Then one day, Min-jeong, who has had a crush on Ki-chan for a long time, finds out what is going on between the two. The young stepmother fools her husband and falls in love with his son and the son falls in love with his father's woman. They make a deal with Min-jeong to make sure she doesn't say anything.

20-year-old Kyeong-soo is a man who's full of assumptions. He learned about sex from Internet porn, but nothing about the real thing. He's only had crushes and has never even kissed before. He got embarrassed when he confessed his feelings to Ji-yeon, his crush. He comforted himself from the shame with Japanese girls in his room with his right hand. One day, he has a fight with his father and remembers his friend Baek-hyeon had invited him over to Gangwon-do. There he falls in love with his friends' mother. Written by lament

After almost 10 years of marriage, attractive Zoe discovers that her marriage lacks passion and surprise, and is seduced by the possibility of finding those sensations already forgotten in her husband's brother. From this premise a series of events lead these three characters to a dangerous game of revenges, secrets and passions. Two brothers and one woman: the triangle is outlined in a disquieting way. It is a bomb that triggers family secrets, the contained rage of desire and the unmanageable power of love. An exciting story that subjugates the viewer from beginning to end. Even though Zoe/Sonia has been married to Ignacio/Ishan for about a decade, they are unable to have children. She wants to be intimate but he prefers to be ready for intimacy on Saturdays only, and she gets physically drawn to his artistic brother, Gonzalo/Rohan. Then things get complicated for her after she tests positive for motherhood and finds that her husband may be gay.

Stuck in a dull marriage, successful shrink Mia DuBois follows a patient's advice and exposes her wild side at a private underground club, where she meets a handsome stranger and begins an affair that may cost her more than just her husband.

David’s life is on the slide: he’s broke, in the middle of a divorce and ‘can’t get it up’. His girlfriend, Alice, is his rock, but the magazine she writes for is going down and the pressure is on to find a story. While job hunting online, David stumbles across the perfect antidote to his boredom: a ‘Swingers’ site. The resulting inbox of lewd invitations on the home-laptop justifiably upsets Alice, until she realises this could be just the ‘story’ she needs. The idea of uncovering the swinging scene causes quite a stir in Alice’s office and, much to David’s chagrin, she is urged to pursue the story. Their first reluctant foray is an hysterically low-rent initiation, however, an unexpected upturn for David’s manhood is all the extra encouragement they need. As events accelerate beyond their control the once adoring couple become lost and fundamental questions are asked of their relationship.

Audra confesses to her husband Noel that she had a lesbian fling in college with her roommate Holly. Things turn upside down when Holly visits their house and Noel suggests the idea of having a threesome after getting the idea stuck in his head from his friend Pete.

In a last ditch effort to save their marriage, Nick and Willa visit a renowned, yet eccentric, couples therapist and embark on a month-long journey of provocative and hilarious sex assignments.

Formerly known as "Two Women" or "Freezing Rain". A man who wants all love, a wife who approaches her husband's other woman, and a woman who wants to keep her love. A classy melodrama of these three people and their risky encounter.

Young-joon and So-yeo are a young couple with their marriage relatively stable. On a day their mutual friend opens a wine bar, they come across Min-jae and Yu-na, a couple quite the opposite of themselves. After a trade of talks, Young-joon becomes a client of fashion consultant Yu-na, while hotelier Min-jae agrees to help So-yeo book a hotel for her Hong Kong business trip. So-yeo meets Min-jae by chance in Hong Kong, while Young-joon trades suggestive remarks with Yu-na who visits him on a consulting session. That night, the four of them find in the other partner what had been missing in their respective marriages…(hancinema.net)

Gong-soo works in an underwear company and has a crush on one of the new designers named Soo-yeon. Gong-soo is preparing a design PT for a major company when he decides to tell Soo-yeon how he feels about her. He looks for a chance to tell her but Chief Lee, a handsome and talented man gets in the way.

A doctor at a clinic where erotic role-playing is used to save troubled marriages gets turned on by his patients' sizzling fantasies.

Two married women start to have an affair with men they met online. However, one of them gets caught, and the other feels disappointed at the man.

Seon-mi hands a name card to Joo-hee who is about to get married, saying that she'll be able to feel sexual satisfaction like never before. Joo-hee experiences something new and starts expressing her rising emotions to her fiance despite the time and place. Unlike Joo-hee who is enjoying this, Min-woo is getting tired. He tries to satisfy her to the best of his abilities and even asks for advice from friends but it's not enough. What is that place that has her upside down like this?

A wife begins to confuse fantasy with reality after she is seduced by the hot tub repairman and others while her husband is out of town.

Nineteen-year-old, Jin-goo enjoys an erotic moment to himself while thinking about his pretty English tutor. Then one day, he is caught in the middle of an embarrassing moment and becomes awkward with her. However, this becomes an opportunity and she starts teaching him sex. Their replationship becomes an uncontrollable romance. However, she quits the tutoring and the relationship to get married. Time goes on and Jin-goo is a grown up. He's used to thoughtless sex. However, his partner of benefit gets pregnant so he meets his future-mother-in-law to talk about marriage. However, she's so beautiful and sexy. He moves in with the in-laws but soon breaks out of the marrige due to his wife's fling. The mother-in-law doesn't know how to make it up to him for what her daughter has done. Jin-goo suggests something dangerous...

Dong-Ki has one night stand with Shin-Ah, a woman who has hardly any faith in true love but indulge herself in sex. Shacking up and making love with each other day in and day out, these two young persons, however, find themselves argue about tiny little things and soon they grow tired of each other. Separation, nevertheless, makes Dong-Ki realize that he has already found the love of his life and a marriage proposal is his next step. Shin-Ah, on the other hand, has no intention to settle down...

Ga-hee appeared in front of Seong-min who was bored running a book store after retiring. Ga-hee runs a ballet school and wasn"t on very good terms with her husband, which led to her and Seong-min falling madly in love together. They know they shouldn"t be together, but that"s what makes everything even better. Later on, their love reaches the point of destruction...

A daughter seeks to restore the reputation of her disgraced father, a wronged college professor. With help of a professional student, she must overcome an ambitious sorority bitch and corrupt college dean.

Florist Ae-ran and forensics investigator Min-ho from the Public Prosecutor's Office both have a family that everyone wants. However, Min-ho can't handle bed time so Ae-ran starts a 'challenge game' in which she seduces and has sex with strange men. One day, Ae-ran and Min-ho meet Alex at a tango cafe. Alex is interested in Ae-ran and approaches her while Ae-ran takes interest in Alex who is more handsome than her husband. Min-ho later witnesses them in action and gets angry when he finds out the man Ae-ran seduced is Alex. Min-ho feels nervous because he finds out Alex isn't just a game partner and approached him for a reason. Min-ho tries to get rid of Alex but Alex chokes Ae-ran and Min-ho even more and feels catharsis. The game they started is turning into a catastrophe...

Min-ho and Jeong-il end up working with each other's wives one day. As time passes, the men feel attracted physically to their friend's wives. In the end, Jeong-il suggests to Min-ho, "Let's not take sides and just be happy as the four of us!" They start swapping each other.

After a bad break up with Tyler, Mia tries to celebrate her birthday by inviting her friend Simon as her date. With best friends Kristen and Sara at her side, or so she thought, lies, distrust and sexual desires occur during a night full of drama and birthday sex.

An enigmatic outsider living on a remote Scottish island finds herself caught between her minister husband and the delinquent who is sent to live with them.

Joon-soo learns that his friend Hee-gyu's sister Hee-jin has no where to go after being scammed, so he suggests living with him. The two start living together. They are close like brother and sister but they can never be that. The two start getting funny and Joon-soo can't go to sleep at the thought of Hee-jin sleeping just a wall away from him. Mi-na, Joon-soo's girlfriend notices Joon-soo changing and seduces Joon-soo at his house where Hee-jin is. Is it the girlfriend or the sister?

Donna is is unsatisfied with her sex life and jealous of her friends’ husbands. One night she wishes to have their life and wakes up the next morning to find that she has magically swapped places with them.

Seung-gi has been living under a strict father, blaming himself everytime when a natural but uncontrollable desire surges from inside of him. However, because he can't spurt that desire in reality, every night Seung-gi shares passionate love with a mystery woman in his dreams. He meets Eun-ji ("Viki") a senior from school and gets provoked by her as well as Soo-jeong who he's had a crush on forever.

After her mother dies, Young-jae visits her older sister's house, who took care of herself like her, and reunites with her sister, Soon-ae. She is incredibly greedy and charming. With the provocation of Soon-ae, the two develop into a secret relationship. One day when she was having a hot night with her mature lead, her daughter got stuck between the two ... A young and sexy daughter, a seasoned and mature mother, and a man wandering between mother and daughter. An unprecedented triangular romance between the three begins.

Andy and his new girlfriend Sasha go to Matt and Kim’s house for Matt’s birthday. When the guys begin to reminisce about all the one night stands they had in college, Sasha states that one night stand sex is the hottest on the “sexual heat” scale. Grace arrives and joins the conversation about which types of relationships have the best sex, with everyone sharing erotic tales about people they know to illustrate their points. As the debate heats up, it slowly becomes apparent that Grace and Andy used to date, which leads to lots of cattiness between Sasha and Grace, forcing Andy to make a decision.

Three women make a pact to experience as much uncommitted sex as possible, but when one of them falls for the guy next door, the others stick to their agreement and seduce their friend's new love.

Emily, a preacher's wife, is as faithful a spouse as they come — until her hubby, Ted, takes in a handsome drifter who's down on his luck. (Red flag!) Emily finds herself drawn to this sexy wanderer, and it doesn't take long for the pair to begin a steamy affair — right under unsuspecting Ted's nose. When a guilt-ridden Emily eventually tries to call it quits, the real drama begins!

A divorcing couple discover a steamy solution to decide how to divide their property in this erotic drama.