Athira is overwhelmed at the sudden turn of events and miserably leaves without an answer. Arjun comes clean to Athira and asks her to accept his love for her, as a man. And this was the real reason why Kishore and his friends had staged the accident as a cover up. Surya undergoes the necessary procedures and successfully transforms into Arjun, a man.

Kishore becomes an understanding friend and helps him deal with the situation and supports in his transformation as a man. Surya expresses his wish to live as a man. He even warded off Barani's proposal because he had considered him only as a friend, but Barani mistook his friendship for love due to Surya's gender identity. After their wedding, Surya bursts out to Kishore about this problem and tells that he was always in love with Athira, his only friend. He was attracted to women and was interested in becoming a man, but was forced to cover his identity and was forcefully married off. Kishore then explains that Surya was always a transgender man from childhood. Athira is mortified and wonders what is going on, when Arjun reveals a shocking truth, that he is none other than Surya herself. Coincidentally, Barani finds YouTube videos videos of Arjun from his acting days and informs Athira that this was the man he saw. She is taken by surprise when Kishore and mutual friends of Athira and Surya confront her suddenly. When she reaches the location, Surya is nowhere to be seen, and Athira searches the place. Athira goes in search of Surya and Arjun also tags along. Unaware of this, Athira is still on the lookout, when she gets a text message from Surya asking to meet her in person. It is then revealed that the mystery man at Surya's house was Arjun. But shockingly enough, Barani says that this is not the man he saw in Surya's house, which leads to further confusions as to who the mystery man was. To confirm this story, Athira shows the video of Surya and her boyfriend to Barani. He shows Athira a video proof of Surya living happily with her boyfriend but refuses to disclose their location for safety sake. To avoid suspicions from her parents and friends, he staged Surya's death with the help of his friends and faked the autopsy reports using his influence as a doctor. Thinking about both of their future and happiness, Kishore sends Surya off to be with her boyfriend. When questioned, Kishore says that Surya was forcefully married to him by her parents but she was in love with someone else. Athira's suspicion now strongly falls on Kishore. The case takes a bizarre turn when, this time around, the pathologist reports that the victim is not Surya, the entire accident has been staged, and the previous reports were fake. Further evidences lead Athira to reexamine Surya's corpse. While Athira and Arjun's wedding arrangements are being planned, Athira is always preoccupied with Surya's case. It is shown that Barani had left his fingerprints accidentally on Surya's car during the scuffle with the stranger, who chased him out of the house. While accepting that he succeeded in murdering the other woman, Barani also says the attempt to murder Surya was foiled because of a stranger he saw inside her house that day. Barani is nabbed, and he confesses that both Surya and the other murdered woman were his ex-girlfriends who ruined his life, so he wanted to exact revenge. She finds fingerprints on the burnt car, belonging to one Barani, who is also a suspect in another very similar murder case. However, Athira has strong suspicions of it being a murder. The autopsy reports show that the skeleton belongs to Surya and the case is believed to be a freak accident.

Soon enough, Athira finds the burnt-down car and a burnt female skeleton inside it. Initial investigations point that Surya and her car went missing from her house. One day, Athira is called to investigate her best friend Deepa Surya's missing case.

They both start a relationship and decide to marry each other after a while. Athira, a cop in Chennai, meets Arjun, an aspiring actor, during a bus travel.

Thadam movie online watch tamilgun