Best movies like 18 Year Old Seungha's Sense Game

When Pippa and Thomas move into their dream apartment, they notice that their windows look directly into the apartment opposite – inviting them to witness the volatile relationship of the attractive couple across the street. But what starts as a simple curiosity turns into full-blown obsession with increasingly dangerous consequences.

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

A woman becomes very curious about one of her psychiatrist husband's inmates, a man who was found guilty in the murder and disfigurement of his former wife.

A middle-aged couple has a drifter enter their lives. The fish-store owners find that the mysterious young man awakens the couple in ways they didn't expect. Things get tense when the drifter begins an affair with the woman of the house.

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.

After a one-night stand with her son's attractive teacher, a troubled wife finds herself stalked by the dangerously obsessed man.

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

A young Southern débutante temporarily abandons her posh lifestyle and upcoming, semi-arranged marriage to have a lustful and erotic fling with a rugged drifter who works at a local carnival.

A woman, married and with a child but becoming increasingly distant from her husband who is already cheating on her, reluctantly enters a secret relationship with her neighbor, a teenage boy.

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.

The story follows a married couple, apart for a night while the husband takes a business trip with a colleague to whom he's attracted. While he's resisting temptation, his wife encounters her past love.

In revenge for her husband's infidelity, a young beautiful housewife, Mi-heun, starts an affair with an attractive young doctor, In-gyu. Despite her husband's efforts to regain her love and the disapproval by the conservative little town, Mi-huen gradually finds happiness and satisfaction in the affair and decides to turn her back on her quiet life.

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.

Set in the glamour of the New York and Paris art scenes, gallery owner Brooke Gatwick and her newscaster husband Owen Shore, face temptation, jealousy, twists and mystery when two seductive newcomers enter their lives.

A sexy brain teaser of a thriller with nods to classic film noir of the past mixed with a post-modern flair of David Lynch-style surrealism and surprises. When Mickey Lewis, a homeless struggling artist crosses paths with Katrina, the beautiful rich wife of Arthur Webb and is enlisted to paint their home, deadly passions ignite. Soon hidden agendas, dangerous seductions, double and triple-crosses spiral Mickey's life out of control leading to a motel in the middle of nowhere filled with strange people and twisted secrets that all hold the key to the mystery of Mickey's past, present, and future. All it takes is - ONE IN THE GUN.

Red Vacance A young woman and a married middle-aged man have been involved in an affair for 6 years. They plan to go on a vacation, but the man's wife learns of their affair and takes her husband to a remote place. There the wife asks the husband about his affair. As the husband explains his affair, the wife becomes angrier. The wife is about to burn her husband. Meanwhile, the young woman who was involved in the affair receives a text message from the married man. The young woman goes to meet him, but the text message was actually sent by his wife. All three persons then meet at a vacation home ...

A married woman has a fling with her husband’s charming, but sociopathic young patient, but when she returns to her husband she finds herself being stalked by her former lover.

A psychological thriller about a married women who has an affair with a charming young man and gets involved in a series of murders not knowing if the killer is her lover or her husband or someone else.

Cyril and Fiona, a free-wheeling married couple, travel to a tropical coastal town to follow their sexual fantasies. Cyril is a manipulator. There, they meet another couple, Catherine and Hugh, and their three children. Hugh is a one-armed photographer who specializes in nude photographs of peasant women. Soon, they decide to live together and an erotic atmosphere develops between them.

A female traveling companion seduces a married man and his alcoholic wife.

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)

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.

Korea's most popular song writer Hee-soo runs into a nineteen-year-old boy in the elevator. Hee-soo is inspired by a new song watching him shake at her figure. She starts to tell him about women under the excuse that she's teaching him music. They fall for each other but things get complicated when her life teacher, Joon-ho who taught her about life and music comes back.

Five friends at a gathering to celebrate the upcoming marriage of two of them and discuss sex, marriage and infidelity.

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.

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...

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.

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?

Ji-seon is living with her sister and her husband after a divorce. Her sister Ji-yeong leaves for a work trip and Ji-seon is at home all alone with her brother-in-law. The two can't hide their sexual passion and they cross the line. Every time Ji-yeong leaves, the two enjoy risky sex...

Kim is the wife of a mobster and she is very unhappy. Then when her ex shows up and they discover her husband's hidden money, they decide to steal the money and blame one of husband's friends.

An omnibus movie about the jealousy of a man who can't stand the fact that his favorite woman slept with another man in two episodes. Episode 1 At a drinking party led by Jae-hoon, movie director Sang-min meets Hye-jin. Sang-min compliments and sleeps with her favorite Hye-jin while watching her movie. The next morning, Hye-jin's friend Mina left early because of her job, Jae-hoon and Sang-min, who were watching a movie together in Hye-jin's bed are attracted by the atmosphere and curiosity and enjoy 2 to 1. Episode 2 Sang-min meets his school friend Ji-eun at the club. When his foreign friend James showed interest in Ji-eun, Sang-min suddenly became interested in Ji-eun. That night, Sang-min finds out that Ji-eun slept with James, and visits Ji-eun's house with complex emotions mixed with like, anger and jealousy and confesses that he likes her.

Frank and Bethany are happily married in a loving but unfulfilled relationship. To satisfy her carnal urges, Bethany begins working night at an upscale brothel - not for the money, but simply for the thrill of it! She lives happily until one night she is recognized by Paul, a client of her husband's business. When Paul threatens to blackmail her, she decides to tell Frank the truth, hoping he will forgive her. But what Frank sees instead is an opportunity to explore his own dark fantasies! Will Bethany's secret ruin their marriage, or open the door for them to a new era of sexual possibilities?

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