Morris Assheton is in love and means to be married. But his happiness is spoilt when he discovers that someone has been whispering poisonous rumours about him to the girl's father. The culprit is Mills, dastardly partner to the Assheton family's trusted lawyer. Morris vows revenge.
When Mills' body is discovered, brutally beaten, the ugly quarrel comes to light and suspicion naturally falls on Morris. His innocence is debated in a tense courtroom, as an eager public and press look on, but at the last the truth will be discovered in a crumpled envelope and blotting pad.