Beluga Stein wears loud muu-muus, smokes pastel cigarettes, and is a hit or miss psychic. She never travels without her familiar, a black cat named Planchette, who is a far more gifted psychic. The pair ends up at a grand opening of a luxury spa due to an ill-conceived gift. Opposed to healthy pursuits of any kind, Beluga is ready to leave when a body surfaces in the mud baths. After witnessing an inept inquest and supernatural manifestations, Beluga and Planchette launch their own investigation...