Lieutenant Willis returns home from France, where he was an aviation ace, to find that his father has been falsely jailed for the murder of Judson Blair.

When Harlan Carr inherited his Uncle Ebenezer's "Jack-O Lantern" house and too his bride there to live, he found himself the unwilling host of a score of hungry relatives within a week. Soon, strange things began to happen. A black cat made the house his headquarters, unexplained sounds could be heard and a shadowy figure floated through the halls at night.

Mary Ainslie has been waiting 30 years for her fiancé, a sea captain, to return. She has kept a light burning in her window to guide him home. His son Carl, by another woman, arrives on vacation in the New England village where Mary lives. Mary is overcome by the resemblance between the young man and his father. The young man falls in love with Ruth, Mary's young comrade. On her deathbed, Mary wishes Carl and Ruth the romantic life that she did not live.

While on the way to visit her mother, Mrs. Bailey stops to feed the horses. She discovers that the oats had leaked out of the bag and she is compelled to ask assistance of a party camping nearby. During her absence from the buggy, her young daughter strays off into the woods and falls over a high cliff.