Dr. Ansel Jarrat, a naturalist, works at the Natural History Museum. Dr. Jarrat never cared that he put many insects through incredible pain by pulling them apart and dissecting them without chloroform for the museum's exhibits. After all they were only insects. But now the insects will have their revenge. Every night Dr. Jarrat finds himself turning into an insect. A caterpillar one night, a cockroach the next. Will Dr. Jarrat find a way out of this curse or will he die the death of an insect, like so many he has killed?
Young artist Tom Daly wants to paint the macabre, because it fascinates him. Encountering horror master painter Peter Gynt and spending a dreadful night at his lonely mansion will change his life forever.