Thiruppu Munai (Eng: Turning Point) is a 1989 Tamil language crime film directed by Kalaivanan Kannadasan. The film features Karthik and Chitra in lead roles. The film, produced by B. Kandaswami, had musical score by Ilaiyaraaja and was released on 3 November 1989.
Sathyamoorthy (J. V. Somayajulu), an honest politician, becomes the new Minister of Justice. Chakravarthy (Vinu Chakravarthy), a corrupted politician, who wants to be a minister feels ridiculous and tries to kill Sathyamoorthy but Chakravarthy fails each time.
Rajaram (Karthik), a jobless graduate, comes to the city to find a job. He has a mother in his village and he has a lot of debts. There, he becomes friend with Pichandi (Janagaraj), who is also a jobless graduate, and Chidambaram (Vagai Chandrasekhar), a disabled family man. Sangeetha, Chakravarthy’s niece, (Silk Smitha) interviewed Rajaram for a job and he passes it well. Rajaram is hired by Chakravarthy but Chakravarthy asks him to first charm Chitra (Chitra), Sathyamoorthy’s daughter. Rajaram tries to charm her and Chitra falls in love with him. Sathyamoorthy wants to see, his daughter’s lover, Rajaram, so Chakravarthy gives him a flower bouquet with a bomb inside. Sathyamoorthy appreciates Rajaram and he gives the flower bouquet to Sathyamoorthy. Sathyamoorthy dies in the bomb blast. Rajaram is sentenced to life imprisonment and Pichandi to five years in prison.
Chakravarthy has succeeded to the minister post and he decides to kill the witnesses. Anand (Thyagu), the jailer, because of his corrupted services, becomes the sub-jailer. Vanchinathan (Also Karthik), who looks exactly like Rajaram, is the new jailer. Manimudi (Ajay Ratnam), Chakravarthy’s henchman, kills Pichandi under the command of Chakravarthy and Vanchinathan is sentenced to life imprisonment. Vanchinathan then escapes from the jail and with Chitra, they try to flee the innocent Rajaram. Later, Chidambaram and his wife (Sabitha Anand) were murdered by Chakravarthy’s henchmen.
Finally, Rajaram and Vanchinathan kill Chakravarthy’s henchmen. Chakravarthy is sentenced to life imprisonment, Rajaram and Chitra get married and Vanchinathan decides to bring up Chidambaram’s son.
Directed by Kalaivanan Kannadasan
Produced by B. Kandaswami
Written by K. N. Lakshmanan
Starring Karthik, Chitra, Janagaraj, Vagai Chandrasekhar, Vinu Chakravarthy, J. V. Somayajulu, Silk Smitha, Sabitha Anand, Thyagu, Ajay Ratnam
Music by Ilaiyaraaja
Cinematography G. Dhanapal
Edited by B. K. Mohan
Production B. K. Enterprizes
Release date 3 November 1989
Running time 130 min