Ethan writes a shocking confession letter to Connie
Will this be the end of his career?
When Connie tells Lily and Ethan that Scott's death has been ruled an accident, Ethan struggles to come to terms with the fact that he has gotten away with allowing someone to die.
Ethan throws himself into work with a medical mystery involving Mia, a girl who has been helping to run ghost tours with her mother.
Driven to distraction by guilt and unable to solve the mystery of Mia's illness, Ethan falls apart. Reaching breaking point, he writes a letter of resignation to Mrs Beauchamp, in which he admits to letting Scott Ellison die.
Meanwhile, after being let down by Ethan, Iain steps in as her date to take Lily to her cousin's wedding.
Elsewhere, Dylan's moral compass gets him in a tight spot.
Ethan Hardy in Casualty
© BBC ALISTAIR HEAP
Lily Chao and Iain Dean in Casualty
Digital Spy