Beluga Stein wears loud muu-muus, smokes pastel cigarrettes, 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 end 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 supernatual manifestations, Beluga and Planchette launch their own investigation...