Ahi is an aspiring publisher and wishes to make it big someday. When her favourite author's autobiography lands on her table - which has confessions of his heinous crimes, illegal businesses and few eminent others as his partners in crime - she doesn't know if it's real or someone's trap. It could get her a big breakthrough, but little does she know that it would turn her world upside down completely. Her morbid curiosity pulls her into the depth of a conspiracy. She finds herself in the centre of various mishaps and murders, as if someone wants to lead the way. Driven by her childhood friend Samim's encouragement, and watched over by the ever so charming ACP Rathore, she has to jeopardize her life to find the brutal truth of her past. Touching, thrilling and deeply mysterious, Sin is the New Love is the journey of a girl who stumbles upon the truth about her origin while chasing her dream.