Britten panics when, after an incident at a fairground, he cannot get back to Rex's reality. He frantically searches for a way to restore his double life, but is also plagued by visions of a man he doesn't recognise. As time goes on, he becomes convinced that figuring out who his hallucination is might enable him to see Rex again - but his quest infuriates Vega, who is determined to finally get to the bottom of his partner's obsession with seemingly irrelevant details.