Two horror-obsessed friends, Pit and Mich, head to their buddy Jos’s remote cabin for a wild weekend with their mutual girlfriend, Susi. Inside, they uncover and unwittingly open an ancient chest, unleashing a zombie outbreak in the surrounding woods. Soon, stranded travelers Jean-Yves, Chantale, Alain, and Trixie arrive seeking refuge after their car breaks down.

The 93-minute thriller/slasher movie/whodunit offers an alternative take on the "Kropemann", an ancient Luxembourg legend which was originally told to children to stop them from going near bodies of water to keep them safe from drowning.