In an attempt to piece together fractured memories of a drug-fueled night in the woods, three friends confront guilt, jealousy, and a supernatural presence that threatens to expose their true natures.
Mavka is a dangerous nymph of the forest lake that lure people into its depths for the mermaids to feed on their energy. When she meets Lukian, a biology whizz, Mavka falls in love disrupting the natural order.