In the Tamil-language thriller 'Thegidi', we follow the life of a young woman named Sanjana (played by Taapsee Pannu), a
software engineer who returns to her hometown in Chennai after a few years of living in a different city. As she settles back into her life, she finds herself at odds with her family, particularly her mother, who disapproves of her decision to work late hours and socialize with friends.As Sanjana navigates her complicated
family dynamics, she also meets a charming and seemingly perfect man named Arjun (played by Vinay Rai). The two start a romantic relationship, but Sanjana's mother is not pleased with the idea of her daughter dating someone she doesn't know well.Meanwhile, Sanjana begins to notice strange occurrences in her life, including mysterious phone calls and unexplained disappearances of her colleagues. She becomes increasingly paranoid and starts to suspect that someone is stalking her. As the tension builds, Sanjana's relationship with Arjun becomes strained, and she starts to question his motives.As the story unfolds, it becomes clear that Sanjana's life is not what it seems. She discovers that her family is hiding a dark secret, and her mother's disapproval of her lifestyle is actually a desperate attempt to protect her from a traumatic event from the past.The film takes a dark turn as Sanjana's investigation into her family's past leads her to a shocking revelation: her brother had gone missing years ago, and her family has been keeping it a secret. As Sanjana confronts her family about their deception, she realizes that her mother's behavior was not just a result of cultural or societal expectations, but a desperate attempt to cope with the trauma of losing her son.The film's climax is a thrilling and emotional ride as Sanjana confronts the truth about her family's past and the secrets they have been keeping from her. With its twisty plot, complex characters, and thought-provoking themes, 'Thegidi' is a gripping thriller that will keep you on the edge of your seat until the very end.