Donny is a failing London comedian who gets entangled with a relentless stalker named Martha.

Donny takes some time off from the pub and tries to make amends with Teri. But no matter how much he avoids Martha, he just can't escape from her for long.

As Donny reports Martha to the police, it triggers the memory of a traumatic experience he had with a man, Darrien, who he met at the Edinburgh Fringe Festival years before.

Liz learns the truth about Martha and asks Donny to move out of the house. It is looking like a fresh start for him and Teri, but his persistent memories are stopping them from getting truly close.

Martha finds new ways to get to Donny: by hurting the people he loves. With frustration building as the police fail to intervene, he riskily takes matters into his own hands.

For the first time in his career, Donny feels like he's getting somewhere. Until he makes one careless decision that allows Martha to explode back into his life.