WHEN YOU THINK YOU'RE SAFE,
WHEN YOU THINK YOU'RE ALL ALONE,
THAT'S WHEN HE'LL COME FOR YOU...

A silent killer stalks the city, targeting those home alone at night, playing a deadly game of cat and mouse with the victims.

As panic spreads, Detective Inspector Helen Grace leads the investigation, but is herself a hunted woman, her every step shadowed by a ruthless psychopath bent on revenge.

As she tracks the murderer, Grace begins to suspect there is a truly shock ...