DI Humphrey Goodman and his team are called to investigate a murder on a film set.

Sister Julienne receives an SOS from Holloway Prison, whose usual maternity workers have been struck down by illness, and when she and Trixie step in to help, the nun puts…

Dr. Frankenstein is confronted by his past. Vanessa has a vision of Mina, which leads to a strange discovery at the London Zoo.