Mark Reinhardt

A new mother discovers a lullaby in an ancient book and soon regards the song as a blessing, but her world transforms into a nightmare when the lullaby brings forth the ancient demon Lilith.

In 1983, a woman was bitten by a creature in a lake, turning her into a mermaid-like being. Years later, friends visit the island, one gets infected, and they encounter the woman's mother, battling the diseased creatures to survive.