Blutbad Hap Lasser coincidentally survives a cunning arson attack which makes his home explode, two months after his brother died in a similar fire. Monroe reluctantly takes him in, also as a favor to Hap's sister, Monroe's own ex-lover Angelina. She returns to revenge both brothers and hates Grimms but resumes nocturnal hunt fun with Monroe. Lieutenant Peter Orson didn't call either case arson, but lost his own brother in a fire which may be a Blutbad's doing.

Nick is delighted when Juliette, who still can't remember him, invites over for a home cooked dinner to get acquainted all over. But he's called away urgently by Monroe, who has a feral visitor: a ruthless killer, yet also a friend of his, who only pretended to take a contract for Monroe's death to warn him after 'accidentally' killing the initial hit man. Nick, who wants her for at least two earlier murders, grudgingly cooperates, going so far as to allow her to pretend to be his partner. To get to the royal presumed to have hired the killer, Monroe must fake his death with a potentially lethal potion, instructed over the phone by Rosalee, who visits a very ill relative, after a dream date with Monroe. The royal is in awkward league with Renard.