Waldemar Januszczak goes looking for the Devil, the ultimate shape-shifter, who keeps popping up in art in an assortment of disguises.

Waldemar Januszczak confronts terrifying artistic displays of blood, gore and death, and wonders why art is so obsessed with horror

He begins by travelling from Japan to India to find the most sexually explicit art ever made, asking why artist have always been so interested in sex