Erika J. Othen

Lillo (Christian De Sica) married Milena, one of the richest women in Europe. The marriage contract provides that Lillo undertakes to never cheat on her, under penalty of divorce and not even a penny of alimony. But one day he meets Barbara (Sabrina Ferilli) and it's immediately irresistible passion... Filippo Vessato (Fabio De Luigi) is a young surgeon who, to make a career, is forced to suffer the harassment of his head, Professor Benci (Claudio Bisio). Filippo is about to go to New York to get married and Benci does not miss an opportunity to further harass him by asking him to bring a gift to his son, a "model" student at Riverside College.

Knock Knock is a horror film that combines fear with revenge, hate with justice and responsibility with sacrifice. The bible says an "Eye for an Eye." Rico was just a big fun loving son of a hard working neighborhood business man. The problem is his dad is an undertaker. Some popular high school Students thought he was weird because of it. Rico kept to himself...

Cast members of a new reality TV show find themselves trapped in an old murder house with a sledge hammer wielding psychopath.