The Door With Seven Locks

Detective Dick Martin's last assignment takes a twist when bank robbery suspect Lew Pheeney reveals an obsession with a dead man's tomb. As Martin delves deeper, he uncovers a complex mystery involving a captivating librarian, a deranged scientist, and a missing heir to a fortune. The investigation spirals into a dark world of fraud, deceit, torture, and murder, challenging Martin to untangle the sinister connections before it's too late.