Things are not looking good for Rabbit as it's clear he's been framed for murder - or committed a murder. Either way, he's on the run, but Strauss and Mabel refuse to believe he's guilty.
London is being terrorized by a mysterious killer taking the guise of the "Brick Man", a mythical figure from London folklore who comes out of brick walls on Brick Night and stabs people - except this time its real and people are dying.