Five years ago, Andie disappeared; her boyfriend Sal was suspected after a confession text, then found dead. Andie's body never found. Pip, linked to events, aims to clear Sal's name and uncover truth behind the mysterious case.
Now a team, Pip and Ravi turn their attention to Andie's best friends and find out Andie had a secret life that Sal was unhappy about. Meanwhile, Pip receives an anonymous warning.
Pip and Ravi find out more about Andie's secret life, and when Pip is presented with a new piece of evidence, she reaches a crisis point and questions whether Sal is guilty.
Pip must come to terms with the repercussions of solving the case. But something isn't quite right and Pip puts herself in danger once more to find out the whole truth.