Unnai Thedi Varuven is a 1985 Indian Tamil-language thriller film directed by C. V. Sridhar and produced by K. R. Gangadharan.
The film stars Suresh, Nalini, Sadhana, and Vinoth, and was released on July 5, 1985.
The plot revolves around Devi, whose education is funded by her best friend Anitha, who lives with her family including her brother and sister-in-law. A fugitive killer enters their home seeking refuge but gets captured by them. After escaping prison, the killer harbors resentment towards both women.
Anitha meets Anand, a dancer, sparking a romance that Devi reciprocates despite feeling obligated to her benefactor. They marry just before the escaped killer begins his revenge plot against them.