4Private Investigator Joe Parrott is at it again, but this time he reluctantly accepts help from an old friend. After helping Joe solve his sister's case, Stefan Nowak has dreams of becoming a PI just like Joe and has just acquired a PI licence. While headed to Joe's office to make the proposal, he bumps into Sally, a family friend of Joe's, who needs Joe's help. Stefan, only too eager to step in, convinces Sally to tell him her story. It seems that, much to Sally's disapproval, her friend Hanna had taken a train to Blackpool to see a man she met on a dating site and has not returned. Sally has not heard from her since.

When Joe hears the story, he initially isn't convinced anything is wrong. He changes his mind when the three make a gruesome discovery.

Travelling to Blackpool, Joe learns that Ian, the man Hanna met online, is quite an unsavory character. Adding to this, the local police announce to Joe that someone has just been found murdered. Joe and Stefan find themselves in unfamiliar territory and are met with hostility and resistance every step of the way. On top of that, they cannot distinguish friend from foe.

In Hero of Blackpool, anyone is fair game, and when the rats come out at night, only a hero can save you.