After enduring a shady share house with some lousy housemates, Lily desperately wants to start over. She finds a beautiful new home with a kind but scattered young woman named Greer who offers patchy details to Lily over the phone from Paris. Lily can’t believe her luck as she arrives at the house, but her delight is cut short when she meets her second housemate, Becca, who Greer failed to mention. Becca is awkward and reserved but Lily is determined to make her new situation work and tries to bond with Becca. It is only when her phone goes missing and Becca’s odd behaviour quickly crescendos that Lily realises she’s made a horrifying mistake.