Theera Kaadhal

Spoiler-free synopsis

The film begins with Gautham going on a business trip to Bangalore while calling his wife Vandhana. She was stuck in traffic and cannot meet him up, while he was with his daughter Aarthi (Vriddhi Vishal). At the same time, there was a traffic jam happening where a husband, Prakash, is dropping off his wife Aaranya to the railway station, where someone crashed into his car, which made him get out and argue with the person behind. Aaranya tries to stop this but only to get slapped by Prakash. She ended up walking to the station. During one of the train breaks, Gautham stepped out to grab a drink and this was where he saw Aaranya who was also out of the station to get some fresh air and they rekindled. Turns out Gautham and Aaranya were ex-lovers who broke up due to their family disapproval, and Aaranya failing to fight for their love when her parents set up a proposal to Prakash. They both reconciled and turns out they were both going to Bangalore for a business trip. They ended up telling each other that they are married to different partners and Gautham tells her he has a daughter. Aaranya lied by saying that she is in a 'happy marriage' with Prakash. During the trip, they both end up getting close romantically and Aaranya reveals that she lied that she is in a happy marriage and showed that Prakash abuses her. Gautham said he will be there for her emotional support. When they departed and went to their family home, things became worse for both of their married homes. Vandhana, a workaholic, spends less time with the family, which causes issues with Gautham. However, with Aaranya, Prakash abused her even more after his boss jokingly said that Aaranya was smarter than Prakash. This made Aaranya ask for a divorce from her husband, even though her parents pleaded with her not to. She told Gautham about this, which he was relieved but she tried to get closer to him which he revealed that she should move on with her life and accept that Gautham is married. In order to be close to Gautham, Aaranya moves into the flat next to him and tries to become closer to Gautham's family, which makes Gautham worried. She also tries to get closer to Gautham which he keeps distancing from her because he realises her intentions. At the same time, Gautham tries to rekindle his relationship with Vandhana which has gone better because Aaranya told him that he is unhappy in his marriage. Vandhana ends up being pregnant with their second child. Meanwhile, Aaranya starts to become obsessive with Gautham. She keeps calling and texting him every night by emotionally manipulating him. One night, Gautham lied to Vandhana that he went out because his friend called him but, she realises that this a lie and becomes suspicious. Vandhana comes to find that Gautham and Aaranya dated during college, which made her suspicious of both. Gautham's friend Arun (Abdool Lee) told him to tell the truth but Gautham did not want to disturb her. Aaranya was helping Gautham's daughter Aarthi by telling her not to bully other people, for which Aarthi tells her that she is becoming a big sister. This upsets Aaranya. Vandhana ends up buying another SIM card to pretend to be someone else to text her husband, which further adds onto her suspicion that he is cheating on her. Aaranya meets Gautham and asked whether he really loved her which Gautham insults her and said she deserves a husband like Prakash. Aaranya tries to kill herself which Gautham stops her and apologises and comforts her, wh