Paleontologist Dr. Arthur Calgary visits the Argyle family to give them an address book that belongs to Jack Argyle. But he is told that Jack has been executed for the murder of his wife. But the address book can prove that Jack was innocent, so Dr. Calgary starts the investigation all over.
Once the murder was solved, the real mystery began...
Did You Know?
's performance is seen entirely in flashback sequences and is also completely in black-and-white because all the flashbacks are in b&w. One of the film's main posters featuring thumbnail photos of the cast has Dunaway's picture, like the others, in color. See more
Edited into Give Me Your Answer True