The Couple in Cabin 2124

When a crewmember takes his own life but hands Patricia a cryptic note and a request to save Anna just before he jumps, she feels she has no choice but to honour his dying wish. Who is Anna though? The note leads her to investigate the odd-looking and mysterious couple staying in cabin 2124 and so begins an adventure that leads Patricia and her friends through the streets and underbelly of Tokyo, Japan.