A female jogger's body is left in a park, dressed in SM-gear and covered in caramel. The cuffs were custom-made by Tyler Benton for the victim, Jessica Margolis, as a gag-gift from her boyfriend due to he sociological study of sexual domination. Castle is puzzled by how much Becket knows about Mahattan's bondage scene. Lady Irene reveals that Jessica worked in her dungeon House of Pain as the dominatrix Mistress Venom, without disclosing her research. So who knew and minded or abused that knowledge?
—KGF Vissers