Watch Sadisflix. Catherine is a young and sexually liberated girl with a boyish figure who lives with her older boyfriend Carlo, the author of erotic novels, in a seaside villa. There is also a maid there, with whom Catherine dallies on the side, lighting a fire under Carlo's creativity. A photographer named Ian is determined to take provocative nude photos of Catherine and, when Carlo is summoned to Rome on business, it seems his chance has come.