The Night of the Tottering Tontine

West and Gordon are assigned to protect Dr. Raven, who is developing a secret weapon. Raven is a member of a tontine, an investment group whose by-laws state that the surving member of the group gets the assets of the group. When one of the tontine's members is killed and an attempt is made on Raven's life, the agents decide to investigate.

West et Gordon sont chargés d'assurer la sécurité d'un des membres d'un groupe d'investisseurs. Ce groupe est organisé de telle sorte que le dernier survivant profitera de tous les bénéfices...

West y Gordon son asignados para proteger al Profesor Raven, que está trabajando en el desarrollo de un arma secreta.