Dr. Jim Swire tragically loses his daughter when Pan Am Flight 103 exploded over a small town on December 21, 1988. Travelling across continents and political divides, Swire embarks on a relentless journey that not only jeopardizes his stability, family and life, but completely overturns his trust in the justice system. As the truth shifts under Jim’s feet, his view of the world is left forever sullied.

Una, a woman in England, attends her neighbor's criminal trial where she confronts him about their past sexual relationship when she was only thirteen. The story is told through flashbacks, revealing the impact of the traumatic event on Una's life. As she digs into her past and seeks closure, she pretends to be the man's daughter, leading to a dual-timeline narrative. The movie explores themes of psychological drama, sexual abuse, pedophilia, and teenage female sexuality.