One split second can destroy your life forever.
Single mother Jen Cornish is just trying to hold things together for the sake of her seven-year-old son Charlie. Until the day when she does an impulsive good deed to help a neighbour, setting off a terrifying chain of events that quickly spirals out of control....
When she is arrested for a crime she didn't commit, Jen quickly starts to wonder if someone is playing a cruel game with her - or is she losing her mind? Desperate to clear her name with the police, she must first untangle a chilling web of lies. But someone is watching her every move - and it isn't just Jen who is in danger. They're watching her child as well.