Two married couples, Doris (Helen Chadwick) and John Manning (Gayne Whitman) and Clara (Dorothy Revier) and Herbert Bradley (Ray Ripley), each separate as a result of domestic arguments.
Blinded in a train accident James Driscoll (Holmes Herbert), whose wife, Miriam Driscoll (Belle Bennett), has been having an affair with his young male secretary Phillip Kingston )Carroll Nye), regains his eyesight.
Following his mother's death, John Gregory becomes the "Eagle," a thief determined to get even with the mining company that stole his family's fortune.
Madge Garvey (Dorothy Phillips) works in a shoe factory. Her father Joe (Richard de la Reno) is a drunk who beats his wife (Alice May Youss), and her sister Helen (Belle Bennett) has repeated the pattern by marrying Dan Mallory (Edward Brady).
To help secret serviceman Bill Parsons in pursuit of the thieving Benson gang wealthy criminologist Henry Avery sends his assistant Blinky to cover the waterfront while he attends a reception at the home of Mrs.
The Door Between was based on Anthony the Absolute, a novel by Samuel Merwyn. The story begins in Japan, where American musicologist Anthony Eckert (Monroe Salisbury) is busily collecting records of authentic Japanese folk songs.
During his daily duties, Casey the Cop rescues a woman who's soon his sweetheart. Later, she learns from her banker uncle that her inheritance has been stolen, and he's accusing Casey's own cashier brother.
Firemen Tom and Joe each loves the other's sister, although neither is able to support a wife. Tom's troubles are compounded by a rival for his sweetheart's hand.
When his master is attacked and left speechless, Ranger is held responsible. On the lam from the Law, the canine hero links up with telegrapher Bill Brady and Bill's girlfriend Helen Meadows.
Douglas MacLean stars as The Young Thief, who falls in love with The Girl, played by Sue Carol. Alas, the Girl has been sold into the harem of The Wazir (Albert Prisco), forcing the Thief to sneak into the palace to rescue her.