Mercy (2003)

Trapped in the hills of Berkeley California during a record rainstorm, Roman & Stacia Benett are visited by a mysterious stranger. Offering Jasper a place to stay until the storm passes becomes a mistake they may regret. Odd behavior and an elusive past give question to Jasper's intentions. As the storm intensifies tensions snap and plans go awry. What would you do secluded in the hills, alone, at night, with odd sounds, and a stranger in your house?