“In all the cases I’ve been mixed up in,” muses Colonel Anthony Gethryn early on in The Crime Conductor (1932), “I can only remember two which I was pulled into from the outside. All the others I seemed to fall into”. Cue a knock at the door from a constable because the celebrated theatrical impressario Willington Sigsbee has been found drowned in his bathtub over the road, and Gethryn falls into yet another murder investigation. Locked bathroom door notwithstanding, Gethryn is suspicious partly on account of “why a bath was wanted at all” in the middle of the “slightly orgiastic party” Sigsbee was hosting, and so the household comes under suspicion. Cue The Yard…