Picture-esque empty-nester couple Mandy and Mick Sinclair, returning from their travels abroad, are looking to repurchase their family home - the suburban Auckland home they raised their children in. When real estate agent Allison Bell invites them back into the house they knew, she soon comes to learn that neither Mick nor Mandy are quite what they seem, and finds herself in way over her head, embroiled in the Sinclairs’ madness.