Driven to desperate measures, nurse Cath Hardacre assumes the identity of her best friend, an A&E doctor, and finds work in a struggling emergency department.

Cath finds herself falling for Andy and wonders how can she keep hold of the perfect man when she is living a lie. An encounter with someone from her past threatens to expose her secret.

When Jamie McCain arrives on the spinal unit, he’s angry, uncooperative and refuses to talk about his injury. But what really happened to Jamie, and is he a man we can trust?

Jamie continues to disrupt the unit with his recurring night terrors. As he searches obsessively for the truth, his behaviour becomes increasingly erratic. Is the threat real or imagined?

Jamie faces up to his past, whilst his investigation drags the staff into their own unnerving nightmares.