The Originals (2013)

S1E12 Dance Back from the Grave

Marcel and Klaus's strained relationship reaches a breaking point when Marcel declines to assist Klaus with a horrifying find in the Cauldron. Meanwhile, Rebekah is confronted by her history when she stumbles upon the remains of a sacrifice at the docks, linked to a powerful warlock she has encountered in the past. As Klaus faces off against a formidable adversary, he quickly realizes that his opponent holds an unexpected edge in their confrontation.