The Rattrap is a short story that uses metaphor to illustrate how people can become trapped by material pleasures in life. The story follows a peddler who sells rat traps and sees the world as one big trap. He steals money from an old man who gave him shelter but then becomes lost in the woods. The peddler finds work and shelter at a nearby iron mill. The mill owner mistakes the peddler for an old friend and invites him to spend Christmas at his home, where the peddler is treated kindly by the owner's daughter Edla. Her kindness and compassion ultimately help free the peddler from being trapped by his own hard life.