Two crooks are raising a boy to beg money for them, but one night they all stay in a haunted house and a ghost takes a liking to the boy and scares the crooks away so that the ghost can raise the boy himself.
A doctor raises a Martian child among humans as an experiment. When a young man breaks several athletic records, his rival for the affection of a young girl digs through the doctor's records attempting to prove his suspicions regarding alien origin. The doctor catches him going through the files and confronts the snoop with the knowledge that he might be the alien since he does not remember his parents, and the man leaves town to kept the secret quiet. At the wedding of the athletic man and the young girl, the doctor's thoughts reveal that it is the girl who is the Martian.
A scientist invents a machine to record sound waves onto solid objects such as rocks and tests the playback on a rock taken from an old temple where the black arts were practiced. At first he hears his voice from the test he made, but then sounds continue as the machine plays back a chant that was stored ages ago on the rock and a demon appears.