During drilling a borehole in Yamal, gas extraction workers uncover a ritual burial of a group of people with a perfectly preserved baby mammoth. Renowned paleoanthropologist Konstantin Pапочка goes to the peninsula to study the find. Night after night, the northern lights silently lead away members of his team one by one. The skeptical scientist is about to confront an ancient evil and, from his own experience, learn the power of local shamans, who know where his pregnant wife—missing for years—has disappeared.