Showtime has released a superbly atmospheric new trailer with footage from the third season of its hit supernatural drama series “Penny Dreadful”. The clip comes ahead of the much-anticipated premiere on May 1st.

Josh Hartnett, Timothy Dalton and Eva Green return for the new episodes which see Patti LuPone taking on the new regular role of an American therapist who treats Vanessa (Green) with an unconventional new approach: