Martha Horgan is mentally slow. She lives with her aunt Frances. She is known for NEVER lying. This causes her to get fired from her job; she tells on 1 of the other store employees, Getso, for taking 20 dollars out of the cash register. The owner thinks MARTHA did it, her being mentally slow and all. Back at the house, Mackey, who does odd jobs hears that Frances needs a worker to fix her porch. He ends up working there, only to become intimately involved with Martha. He is attracted to her naivete.Martha Horgan, a naive woman with an intellectual impairment who lives with her aunt Frances in a small town, is known for always telling the truth. She works at a dry cleaner, where her compulsive truth-telling leads her to report to the boss that another employee has been stealing from the cash register. The thief, in turn, accuses Martha, and she loses her job. In the mean time, a mysterious stranger named Mackey appears at Martha's residence after learning that Aunt Frances needs her porch repaired. Mackey is hired and becomes intimately involved with Martha... which only leads to tragedy.