In this nostalgic nod to 1950s creature features, a fearsome beast known as the Riverbeast emerges from its aquatic hideout to wreak havoc on a tranquil New England community. Neil Stuart, a local tutor, had previously encountered the creature, but his tale was met with skepticism, turning him into the town’s joke. Determined to vindicate himself, Neil embarks on a mission to prove the Riverbeast’s existence. With the support of his charming student, his determined fellow tutors, and an ex-professional athlete, he aims to defeat the water-dwelling threat.