The Clandestine

To salvage her final-year university thesis, a meticulous student named Catherine decides to reconstruct the timeline of a notorious five-year-old cold case involving Sophia Wilson, a student who vanished during a severe storm. Teaming up with Sophia’s grieving brother, Jack, Catherine treats the disappearance as a data-driven puzzle. However, her investigation unearths a dangerous web of local secrets, drawing the attention of an anonymous stalker who begins sending her warning texts. Facing a tight academic deadline and a mounting threat to her life, Catherine must use the precise geometry of her timeline to expose a killer who has been hiding in plain sight before she becomes the next victim.