Wealthy young Edwin Dunwell, who suffers from hypochondria, meets and falls in love with Diana Lovely after he inadvertently causes her automobile to fall into a river. Unknown to Edwin, his relatives are after his money and plot his death. One day, after his doctor tells him that he will die at 5:00 o'clock that afternoon, his relatives try to obtain his signature on a new will. Learning of their greed, Edwin does not sign the will and eventually learns from his physician that the diagnosis was a mistake, inadvertently caused by a bee hiding within the doctor's stethoscope. The revelation brightens Edwin, as well as cures him of his dyspepsia. He decides then to chase after the girl, who is leaving on a train, and convinces her to marry him over her disapproving father's objections.
—AFI