An old man and his Chinese servant are in danager of becoming victims of the ruthless killer, "The Raven."

A clumsy young man nurtures a plant and discovers that it's carnivorous, forcing him to kill to feed it.

After three British Agents are assigned to assassinate a mysterious German spy during World War I, two of them become ambivalent when their duty to the mission conflicts with their consciences.

A bragging sea captain's maritime experience actually extends to navigating a coal barge down inland waterways. His tall tales catch him out when he is coerced into commanding an unseaworthy ship by an unscrupulous shipping agent who means to have it wrecked.