AMC | 9:00 pm

Fans who have been scratching their heads over the very odd relationship between the vampire Cassidy (Joseph Gilgun) and the elderly and infirm Denis (Ronald Guttman) — or "Dennis," as Cassidy keeps calling him — will get some answers during the course of the new episode "Holes." Elsewhere, Jesse (Dominic Cooper) investigates a clue about God, while Tulip (Ruth Negga) makes friends with a new neighbor.