If your Valentine’s Day has been overrun with warm, fuzzy feelings, this trailer for Showtime’s upcoming horror series, Penny Dreadful, should snap you back to reality. Starring Josh Hartnett and Eva Green, this series weaves the origins of classic literary horror icons, like Frankenstein’s monster, Count Dracula, and Dorian Gray, together into one white-knuckle odyssey.

This new trailer for the show sets the mood, rather than spoils the plot. There are a few short glimpses of these horror icons, including a brilliant shot of Frankenstein’s monster towards the end. But the trailer mostly keeps things fairly ambiguous, which, of course, is a good thing. The concept is so fresh and full of potential that there is no need to spoil anything this far in advance. For horror fans, this is definitely a show worth keeping an eye on.

Penny Dreadful will debut on Showtime on May 11, 2014.

[via Showtime]