Nagina

A former police detective, still recovering from his alcohol addiction, is seemingly drawn into L.A's criminal underworld after stumbling upon a local drug ring.

About

Rajiv, who comes from an upper-class family, marries an orphan named Rajni. Everything is great until the mysterious Bhairo Nnath comes to town and informs Rajiv's mother that Rajni is actually a shape-shifting snake who married her son to seek vengeance for her husband's death. 

Trivia

A sequel was released titled Nigahen: Nagina Part II in 1989.