Director: Luv Ranjan
Writer: Luv Ranjan
Cast: Kartik Aaryan as Sonu Sharma
Nushrat Bharucha as Sweety Sharma
Sunny Singh as Titu Sharma
Ishita Raj Sharma as Pihu Gaitonde
Alok Nath as Ghasitaram Sharma
Virendra Saxena as Lalu Kaka, Ghasitaram’s best friend
Madhumalti Kapoor as Sushmita Devi Sharma, Titu’s grandma
Ayesha Raza Mishra as Maya Sharma, Titu’s mother
Pawan Chopra as Dharmendra Kumar Sharma, Titu’s father
Deepika Amin as Renu Sharma, Sweety’s mom
Rajesh Jais as Arjun Sharma, Sweety’s father
Sonnalli Seygall as Sonu’s girlfriend (Cameo appearance)
Sakshi Malik in the song “Bom Diggy Diggy”
A desolate Titu (Sunny Singh Nijjar) is grief-stricken because his girlfriend Pihu (Ishita Raj Sharma) refuses to talk to him. Sonu (Kartik Aaryan), his best friend, tells him that she is not meant for him, as Titu is loving and caring while Pihu is possessive and callous. Sonu gives an ultimatum to Titu to choose between Pihu and him and Titu chooses his best friend. Six months after his breakup, Titu’s family tells him that a family has shown interest in getting him married to their daughter Sweety (Nushrat Bharucha). He agrees to meet Sweety and they instantly hit it off. Sweety is extremely caring, sensitive, and clever and is seemingly the ‘ideal partner’. Sonu finds this very fishy, though he admits to Titu that she seems nice but he can’t really say whether or not the two should marry just yet.
He later finds out that Sweety was in fact going to marry another man named Rahul but that did not work out as she became dominating, possessive, and once even got drunk and created a scene in Goa. He reveals this to the family, who question Sweety regarding the same and she tells her version of the story in which she does not seem to be at fault. Titu tells Sonu that she had told him all of this in the first meeting itself and he did not want the family to know about all of this. On the night of the engagement, Sonu begins warming up to the idea of Titu and Sweety’s wedding. However, Sweety reveals that she in fact is a gold digger and challenges him that she will throw him out of Titu’s life and home very soon. Sonu confides in his grandfathers Ghasitaram and Lalu about the revelation. They bet between themselves to see if Sonu can save Titu from Sweety.
Titu is now engaged to Sweety and this brings a lot of compromises for Sonu who was earlier used to living a bachelor’s life. Sweety changes their care-taker, she walks in on Sonu making out with a girl. She also manipulates the family members and Titu into buying and naming a house after her and Titu. She turns the house into a vegetarian household and controls Ghasitaram by threatening to reveal his dirty lies to Dadi. Sonu foresees Titu’s imminent downfall and to protect him he plans a bachelor party for Titu at Amsterdam, where he arranges his ex-girlfriend Pihu to “accidentally” run into them after convincing her that Titu is still in love with her and he wants to help them get back together. They return to India along with Pihu and Sonu is happy to see a bothered Sweety after witnessing the growing closeness between Titu and Pihu. But Sweety reveals the truth to Pihu that it was in fact Sonu who broke Titu and Pihu up in the first place and that Sonu is using her. At this point, Titu is visibly angry with Sonu.
He once again confides with Ghasitaram and Lalu and they volunteer to sort the situation but Sonu interjects saying his best friend should decide for himself. Sonu helps prepare for the wedding, dances in the Baraat but during the garland ceremony, he makes a final attempt and gives Titu the ultimatum again to choose between him and Sweety and walks away from the wedding, crying. Sweety attempts to turn the tide but Titu, in a fit of epiphany, reveals to Sweety that this is barely the second time he has ever seen Sonu cry, first time being three days after his mother’s death, when he was thirteen. Hence, Sonu’s tears reveal that he is a lot more to Titu and firmly announces that if it is between Sonu or her, it will always be his best friend. The scene switches to Sweety standing in the mandap and coming to terms that her malicious tactics cannot always work.
After the narrow escape, Sonu, Titu, Ghasitaram, and Lalu are seen sitting and drinking by the pool, whilst Sonu discusses his own marriage plans, to the disgust of others.