Hugo Speer

A delivery driver is killed, and a trace of his movements places him at a pub that his wife frequents. She has a motive-but she's an alcoholic and can't remember if she killed him or not. When David doesn't turn up for work, Vivienne confronts him.

After young medical student Japesh Patel is stabbed to death, Billie wonders if it's connected to a similar, non-fatal attack on a gang member. Meanwhile, tensions between David and Vivienne reach a breaking point.

Jed goes to Bedlam Heights to save Kate, who has riled the violent ghost of a former asylum inmate with an old ring.

While Mark receives phone calls in the dead of night, Kate suspects Warren might be hiding a dreadful secret.

Molly is worried when Leah falls victim to a series of horrifying events, but Kate discovers there's more to Leah than meets the eye.

A groom is killed at his bachelor party, and the man who reports the crime is the ex-husband of the bride. The detectives race to find the missing 18-year-old best man, who may have been the killer or another victim.

DC Rob Brady and Trainee DC Billie Fitzgerald respond to a gruesome scene: a man found stabbed multiple times and left hanging from a tree. DS Vivienne Cole expects to lead the investigation but is shocked when DI David Bradford takes over, as he has been on leave since the disappearance of his wife.

With Billie stabbed and her attacker on the loose, Vivienne blames herself for not recognizing that Billie was in danger. As the team scrambles to track down Amber, they discover that there's more to her than meets the eye.

When schoolboy Luis Moretti is found dead in a lake, the detectives learn of a potential connection to the recent suicide of a young girl. Meanwhile, DS Vivienne Cole tells David that she believes Detective Chief Superintendent Mulgrew was behind the threat to Rob's family, and she reveals her past relationship with the chief.

After another cop is murdered, the detectives suspect the crimes are racially motivated and attempt to save a high-profile target. David and Vivienne cross a huge line.