Gripping psychological thriller that delves into the complexities of trust, identity, and the secrets that can lie beneath the surface of a seemingly perfect life. Set on June 21st, the longest day of the year, the story follows Camilla Deschamps, a new mother preparing to return to her job as a literary agent after maternity leave. Her routine morning takes a shocking turn when she discovers her husband, Luke, is missing, leaving behind only a cryptic note. As news breaks of a hostage situation in London, Camilla is stunned to learn that Luke is not a victim but the perpetrator. This revelation thrusts her into a whirlwind of confusion and fear, challenging everything she thought she knew about her husband and their life together.