A desperate young woman teams up with a tenacious private investigator to find her missing sister before the trail goes cold.

Reporter Moira Harrison is lost. In the dark. In a thunderstorm. When a lone figure suddenly appears in the beam of her headlights, Moira slams on her brakes - but it's too late. She feels the solid thump against the side of her car before crashing into a tree on the far side of the road. A man opens her door, tells her he saw everything, and promises to call 911. Then the world fades to black. When she comes to, she is alone. No man. No...