Thaaiku Oru Thaalaattu is a 1986 Indian Tamil film, directed by Balachandra Menon and produced by K. R. Gangadharan. The film stars Sivaji Ganesan, Padmini, Visu and Pandiyan in lead roles. The film had musical score by Ilayaraja. The film was a remake of director's own Malayalam film Oru Painkilikatha.
Three bachelors, Kamal Haasan, Ramesh Arvind and Nassar, stay together and live a happy-go-lucky life. Elsewhere, fifteen-year-old Parvathi (Ruchita Prasad) witnesses her family being murdered by her uncle; she escapes from them to save her life. To avoid getting caught, she disguises herself as a boy and starts living as a servant in the house of these bachelors. Kamal discovers that 'he' is actually a girl. After hearing her story, Kamal and his friends try to protect her from her evil uncle with the help of the policeman (S. P. Balasubrahmanyam) who plots to save her as he still remembers Parvathi who stayed in his house for a brief period as a servant.