It’s her first time on the bullet train. What could possibly go wrong?

When Kat, a journalism student, boards the bullet train from Osaka to Tokyo, she is fulfilling a lifelong dream.

During the journey, she meets Satoshi, a Tokyo nightclub host. But events take a sinister turn when he ends up dead before they reach their destination, and Kat may be the only person who knows what really happened.

Arriving in Tokyo, she sets out to find the three people from the train who hold the key to the truth, embarking on a path that takes her into the shadowy world of Kabukicho, the city’s red-light district. Seeing an opportunity for a career-making story, Kat’s investigations start to uncover a much darker mystery, thrusting her into a high-stakes game in which solving the murder might be her only ticket to survival.