"The Third One" tells about love, the sweetness that comes with the hardships that every couple has experienced. The film opens with a romantic love story between painter Quang Kha (Han Jae Suk) and doctor Thien Di (Ly Nha Ky). However, just when happiness was budding, an unexpected event struck. A serious, life-threatening traffic accident happened, at the same time the line "love and death always go together" sounded. The story becomes more and more dramatic when Quang Kha wants to go back in time to save his wife. At the same time, a new character takes on an important role, but it is not clear whether good or evil will support him to carry out the above plan.
The mother-in-law and father-in-law became lovers, the same time as the marriage of Yeong-eun and Jeong-sik. The dizzying cohabitation of middle-aged lovers who stay hotter than a newlywed, and a newlywed couple who can't even burn hot as half of it begins.
Tade, a free-spirited scion of a respected political family, is living her best life and without a care in the world. However, things get complicated when she develops feelings for Chidi, a fast-rising politician who also happens to be her EX and Cheta, her best friend. As if that wasn’t bad enough, Chidi and Cheta are brothers.
Danti and Bayu live in the same boarding house, with their respective partners. Both are often left by their partners, until they become close. It even involves feelings. When Danti decides to keep her distance from Bayu, she finds out that her husband, Sena, has a relationship with Lastri, Bayu's wife.
A couple married for more than 7 years loses hope for a child. On insistence of his wife he marries her sister. Shortly small squabbles between the two wives lead to comic situation and fun begins.
A married biology professor goes back to her ex boyfriend who is still in love with her. When a secret is revealed, she cannot decide between listening to her heart and her mind.
Frank, a lonely man coasting by in life, is gifted a memory foam pillow by his over-barring mother. Frank soon discovers this pillow contains real memories, memories of a girl whom Frank believes to be the woman of his dreams.
Suryo (25), a thug asking for security money from shops, wants to be closer to Ajeng (24), who is an employee of a used clothing store. Previously, Suryo only know Ajeng by name, nothing more. When on the last day asking for security money, Suryo ventured to get to know Ajeng further. However, Ajeng's indifferent attitude makes Suryo clumsy and almost runs out of topics to talk about. Gradually through the chat, Ajeng slowly opened up. Suryo who is at his wits end starts a chat with his move after this. But unexpectedly, Ajeng also hopes to have the same fate as Suryo. The farewell of the two of them is just ended with Suryo getting the name of Ajeng's facebook account.
Ilya stutters a lot, and this interferes with everything - his personal life, communication with the child, work. In desperation, he enrolls in the course of the famous doctor Cherkasova, a guru in his field, whom patients consider a magician and wizard. There he meets new friends and a new love - a young girl Vera. But it turns out that Cherkasova herself likes Ilya, and she intends to win him over.
The French romance follows musician Dadju and his love story with the hypnotizing Ima. Dadju returns to his home city Kinshasa to perform in a concert. Laetitia is a big fan, but after she finds out that Dadju's concert is sold out, she relies on her father's connections with her boss Yavan to find extra tickets. Yavan invites Dadju to participate in a private concert. Seeking to seduce Laetitia's sister Ima, Yavan hosts the concert, but fate intervenes when Dadju falls in love with Ima at first sight.
World famous movie star Olivia faces a PR disaster when a paparazzi snaps a photo of her with her married lover, Vincent. The hard-working valet Antonio accidentally appears in the same photo and is enlisted to pose as Olivia’s new boyfriend as a cover-up. This ruse with Olivia thrusts Antonio into the spotlight and unexpected chaos.
Tae-soo calls for a business trip massage for his sick wife, Hyang-gi, then Yeong-ho, the top of the massage world appears. Hyang-gi falls for Yeong-ho and eventually declares her divorce from Tae-soo. Tae-soo calls for another massage to get his wife back and revenge on Yeong-ho, then Joo-hee, a tomboy comes, and Tae-soo learns to get a massage with Joo-hee's help and tries to find his wife...
Hye-kyeong enters as housekeeper of Soon-sil and Jeong-seop. Hye-kyeong accidentally found out that she is in a religion like Soon-sil! Using a sense of belonging to Soon-sil, she attracts his lover Tae-bong. Meanwhile, Soon-sil is possessed by Tae-bong, and Soon-sil's husband, gangster Jeong-seop, falls for Hye-kyeong. Hye-kyeong, Jeong-seop, Soon-sil, and Tae-bong use their minds to take over each other.