Lin Wan, 27 years old, criminal psychology consultant. She doesn't believe in ghosts, only logic.
Until that late night, she got on the last bus that shouldn't exist.
The passengers in the car are not people.
The rules say: "Don't talk to strangers and don't look back."
She thought she was solving the case, but found out that she was the "case".
When fear becomes the only currency, how long can your sanity last?