Someone nicknamed the Businessman commits daring kidnappings of members of the British Parliament. To avoid scandal, the British government is forced to pay a ransom. Grandison's secret agency is investigating the abductions, but so far without much success. But they know that Kommersant is about to commit another, this time the last kidnapping, which will be the most significant of all that has happened. It would seem, what does Madame Blanche Tyler’s seances that she conducts for Lady Grace Rainbird have to do with all this? But it is through Blanche and her close-minded friend George Lumley that the thread will stretch to the kidnappers...