The Scorned

The Scorned is a 2005 horror television film. It was the first movie cast entirely with the people from previous reality television series. The movie was filmed during the E behindthescenes reality show Kill Reality.

Raina Schneider tells her best friend, Nichola, that she and her fiance Matt Guiney have been arguing. Nichola who happens to be living in a room of the couples beach house assures her that its merely prewedding jitters, and voices a recurring line Your happily ever after is just around the corner.The two return home, and its not long before Matt and Raina run into yet another argument, resulting in Matt storming from the house in anger. Later that night, Raina awakens and begins to search the house for Matt. She is horrified to encounter him in bed with Nichola, and she storms from the room. The lovers slash her throat in the ensuing struggle. Mortally wounded, Raina stumbles into a pool of water, floating helplessly. ........

Source: Wikipedia