In the tradition of "Single White Female" comes this taut suspenser about Rebecca (Leighton Meester), a college student who develops a strange attachment to her new roommate, Sara (Minka Kelly). But Rebecca's possessive behavior quickly turns into full-blown obsession as she begins terrorizing Sara's friends, sabotaging her relationship with her new boyfriend, and turning to violence in an effort to keep her "friend" all to herself. With Cam Gigandet, Danneel Harris. 91 min. Widescreen (Enhanced); Soundtracks: English Dolby Digital 5.1, DVS Dolby Digital 5.1, French Dolby Digital 5.1; Subtitles: English (SDH), French, Spanish; audio commentary; deleted scenes; alternate scenes.