Retired assassin Julie and her estranged son Edward are forced to work together in a fight for survival, testing their dysfunctional relationship to its limits.

Julie and Edward must maintain a cover and keep Julie's past hidden from their new hosts, but a surprise arrival only complicates things further.

A wedge is driven between the group but answers are close and they must press on as the danger and threat to their lives closes in.

The pieces finally start falling into place for Julie – does she know who might be responsible for the catastrophic trail of events?

As a dramatic final showdown prepares to take place, shocking truths are revealed to Edward that make him question everything he thought he knew about his life.