Desperate to earn some money student Ana answers a job advert asking for occasional nanny duties. Arriving at apartment 3B in the town square for the job interview, things couldn't have gone better either - tea, biscuits, nursery rhymes and a healthy hourly rate. But before long Ana realises she has entered a terrifying dark world of obsession and misery. Kept prisoner in a creepy residence full of antique toys, she must try and overcome the deranged diva Diamantina and her strange daughter, Elisa.