Alice asks Nick to help her trace a thief at her local gym who has been stealing things from the woman's changing room. Joe immediately offers his help as well. Meanwhile Ms. Jefferies visits the Head in his cell, after which there is an explosion. He escapes leaving the words ""Kill Cameron"" on his wall...

Sara Middington is a newly married woman who is convinced her house is haunted. Nick and Alice go along to investigate, and much to Nick's annoyance so does Joe. Getting hopelessly lost on the way to the house they eventually arrive, only to find that Sara became Mrs. Middington only two months after the previous Mrs Middington died...

Some dangerous criminals have escaped from jail thanks to Brian Mantel, a man no-one has been brave enough to testify against. Nick is asked to help watch a man the police think Brian will try and spring next. Nick persuades Joe to help him, but both wind up behind bars. Alice visits Nick, but all he wants to know is if she's kissed Kim, the latest man in her life.

Nick is now working as a plain clothes store detective, and bumps into an old flame who agrees to have dinner with him. Sadly she tells him that she's getting married and wants him to come to the wedding! Nick then helps a magician devoid of talent improve his act.

Nick is suffering from paranoia that he will turn invisible permanently. Moreau calls Nick and asks for his help in protecting Peter Randall, the prosecution's star witness in a what may turn out to be the longest running trial in British history.

The head of the original Gyges project is now confined to a lunatic asylum, having been made permanently invisible he's gone insane. Ms Jefferies is lying low, while Moreau and Dr. Connor face a desperate race to find a cure for the Head. A cure which Nick can help with, if only they could find him.

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