The team pursues a serial killer with a grisly desire to look at his victims' faces as they die, and the trail leads into the world of academic philosophy. However, Nikki is distracted from the case by the death of her grandmother, while Harry invest... (more)igates the demise of a woman who apparently drowned in three inches of water.

Emilia Fox, Leo Bill, Rory Kinnear, Tom Ward, William Gaminara