A new home. A new start. It's all the Lockwoods want. And on The Avenue, a leafy street in an Essex town near the sea, it seems possible. But what if what they want isn't what they get?

On their moving-in day they arrive to a media frenzy. A serial killer has struck in the woods behind The Avenue. The police are investigating. And the neighbours quite clearly have secrets. With their dream quickly turning into a nightmare, the Lockwoods are watching everyone. But who's watching them?