Mostly Sunny is a documentary that tells the remarkable story of Sunny Leone, the Canadian-born, American-bred adult film star who is pursuing her dreams of Bollywood stardom.

A young and ambitious woman's life suddenly comes crashing down when she is betrayed in love. Determined to get revenge she reinvents herself as a successful businesswoman.

It is a reincarnation story about the love between Leela and her lover, which is left incomplete because one of them has been murdered. The story comes to circle after 300 long years; when Leela has taken birth as Meera and her lover's character is also reborn.