It is set in rural Lithuania. The plot revolves around a young man who is suspected to be half-human half-bear, since he was born after his mother was mauled (and, as believed by peasants, raped) by a bear. The title is a misspelling of Lithuanian lokys for “bear”. As such, the plot may be classified into a werewolf theme. Through the novel, the protagonist, Michel/Lokis, manifests signs of animal-like behavior until he finally kills his bride by a bite to her throat and runs away into the forest on his wedding night.