Phillip is a wealthy quadriplegic who needs a caretaker to help him with his day-to-day routine in his New York penthouse. He decides to hire Dell, a struggling parolee who's trying to reconnect with his ex and his young son. Despite coming from two different worlds, an unlikely friendship starts to blossom.

Rachel Watson, devastated by her recent divorce, spends her daily commute fantasizing about the seemingly perfect couple who live in a house that her train passes every day, until one morning she sees something shocking happen there and becomes entangled in the mystery that unfolds.