H.P. Lovecraft's: Two Left Arms

Carter arrives in Italy to restore an ancient painting hidden in a deconsecrated church. As he goes about his work, he discovers the surroundings occupied by people performing strange rituals and a town that is hiding a mystery concerning the nearby lake, which local legend claims was created by a meteor's impact. An impact, it seems, still felt hundreds of years later. AKA The Night-Gaunts.