A letdown after the very strong Sisters of the Flame. This episode only actually starts halfway through, and we get virtually no time to explore Morbius's conquest. It feels like no-one is present for any of this except our main cast.

Cast-wise, no complaints here. Paul and Sheridan are as great as ever. Samuel West is fantastic as Morbius, for what little time he gets. Grace and Siddig are back from the previous story and they're still good here, just underserved in their roles after last time.

The resolution is so quick and simple it's barely a blip on the radar. Good enough cliffhanger, though (or, pair of cliffhangers!).