Disgraced medical researcher Mirs and his skeptical new supervisor Jo arrive on the remote island of St. Ulphia to investigate an outbreak of mass psychosis. The villagers claim they're being possessed—one by one—by a cannibalistic demon known as the Wendigo. While unraveling the villagers' strange tales, Mirs and Jo are drawn into a tangle of local politics, mysterious disappearances, and impossible contradictions. When the missing begin to reappear, the boundaries between fact and folklore become dangerously thin. As tensions rise and trust fractures, Mirs and Jo must confront the possibility that the madness around them may not be entirely imagined— or may not be the villagers' alone. A psychological mystery laced with absurd humor, St. Ulphia's Dead explores how trauma warps truth, how isolation breeds belief, and how the most terrifying demons are the ones we conjure for ourselves.