The story tells of seven people that have been selected among several applicants for one final round to determine who will get an enviable, executive position for a mysterious corporation, Dekia. The seven applicants are submitted to a series of psychological tests - known as the "Grönholm Method" - that start eliminating the applicants one by one. It is warned at the beginning that one of the seven people is an employee of the corporation posing as an applicant to evaluate the others.