When an elite class reunion on a luxury high‑tech train is sabotaged, an anonymous “I killed” confession traps the former students in a 100‑hour pressure cooker of secrets. As the past resurfaces, Lara and Aarón must uncover the truth behind a decade‑old death before the engineered journey destroys them all.

Between memories of Iran and a new life in exile, Shadi drifts through her twenties, navigating friendship, love, and the search for a fragile sense of home.

In the streets of annemasse, Emma Delorme investigates a kidnapping that echoes her own past.

When Darcy returns home to look after his estranged mother, he discovers that she’s got an unusual housemate:
the teenage ghost of his pre-transition self. Now, Darcy must face the past or risk losing himself completely.