When Sarah lucks into a sweet one-bedroom at Asilo Del Mar Apartments in Los Angeles, she thinks she's hit the jackpot. It's got plenty of space, friendly tenants, group BBQs and even a cute neighbour next door. All is not what it seems: loud noises start keeping her awake at night; her cat is missing; everyone seems to be a little too helpful and friendly, except for the weirdo, Lester. Soon, Sarah learns she didn't choose this apartment — it chose her.
When Lindsay Porter, responsible mother and head of the local neighborhood watch program, falls for Stephen, the handsome new bachelor on the block, she begins to fear she and her daughter's lives may be in grave danger.