watch House Swap full movie online HD 123movies, $title full movie online Gostream plot:Based on a true story. A young California screenwriter and his composer girlfriend exchange their Echo Park home for a sprawling Tudor mansion, in the hope of finding creative inspiration. Thinking they have the best of the bargain, they soon learn that the house comes with a stalker who seems able to enter through locked doors. Driven beyond endurance by the continual harassment, the screenwriter sets a trap to exact his revenge... .