A suicide on Platform 7 prompts a female ghost and a Transport Police officer to investigate the details surrounding her death.

Lisa and PC Akash continue to chase down clues about Lisa's death as Akash receives an unexpected lead and Lisa experiences a breakthrough memory.

A flashback to the beginning of Lisa and Matt's relationship shows how Matt slowly chipped away at her and how it led to a fateful pursuit.

Akash races against time to gather evidence for Lisa's case as Lisa sets out to protect Matt's new love and get justice.