Kasalanan ang Buhayin Ka (trans. It's a Sin to Bring You Back to Life) is a 1990 Philippine action film directed by Francis "Jun" Posadas. The film stars Cesar Montano, Rita Avila and John Regala.
Following an altercation with the most prominent criminal family in their town, Jimmy (Cesar) loses his eyesight and people closest to him, including his fiancee Carmen (Vivian). He meets Nancy (Rita), a club dancer and a single mother who gives him a reason to plot revenge against his tormentors. Conflict arises when the woman and her son Biboy (Billy Joe) who gave him a purpose to live again are connected to the same family that gave him hell.
Jestoni Alarcon was originally cast as the leading role, but turned it down in favor of another movie. Eventually, the role went to Cesar Montano, marking his first major role in an action film. Ogie Alcasid was commissioned to sing the movie theme song composed by Rey Magtoto.