The English scientist and traveler Henry Cheswick from an expedition to fabulous India brought not only knowledge, but also a priceless necklace that he inherited from a beautiful lover. According to legend, the jewelry belonged to the Great Black Mother, one of Shiva's wives, and it must be kept until the goddess herself tells you what to do with it. Cheswick violated her will and was severely punished, and the trace of the necklace was lost in the centuries.Nowadays, the St. Petersburg police are investigating the case of a maniac strangler who kills victims with silk scarves with the image of an Indian goddess. An employee of an antique store is involved in this story, who got the key to the cache with that ancient necklace.