Don’t worry, this isn’t Disney’s live-action version of The Little Mermaid. Mermaid’s Song is an upcoming horror take on the classic fairytale that stars Game of Thrones actor Iwan Rheon and a bunch of ghoulish sea monsters. Honestly, mer-people haven’t looked this terrifying since 2012’s Cabin in the Woods. Watch the trailer (above) and see the film on VOD this Tuesday.