A new type of safe, touted as impregnable, alarms insurance companies. To deny the factory's assumptions, three burglars are hired with the task of violating one. A wealthy jeweler's new saf... Read allA new type of safe, touted as impregnable, alarms insurance companies. To deny the factory's assumptions, three burglars are hired with the task of violating one. A wealthy jeweler's new safe is targeted.A new type of safe, touted as impregnable, alarms insurance companies. To deny the factory's assumptions, three burglars are hired with the task of violating one. A wealthy jeweler's new safe is targeted.