Sarah hopes that cleaning out a dead woman's bank account will solve all of her problems. Instead, her problems multiply - and so does she. Starring Tatiana Maslany in the lead role of Sarah, an outsider and orphan whose life changes dramatically after witnessing the suicide of a woman who looks just like her. Sarah assumes her identity, her boyfriend and her bank account. But instead of solving her problems, the street smart chameleon is thrust headlong into a kaleidoscopic mystery. She makes the dizzying discovery that she and the dead woman are clones...but are they the only ones? Sarah quickly finds herself caught in the middle of a deadly conspiracy, racing to find answers.
Sarah's hunt for answers is interrupted by a trip to the suburbs. Alison's paranoia has boiled over, putting all the Orphans at risk. But when Sarah, Alison and Beth's worlds dangerously collide, Sarah must decide who to trust with her secret.