Louis Fernando fails to sell a patent upon which he has spent the better part of his life and drowns himself. His orphaned child Marie is adopted by Lord Chatterton. Geoffrey Brooke, who is in the employ of Lord Chatterton, falls in love with Marie. Chatterton's general manager Arthur Newton also loves Marie and formulates a scheme whereby he hopes to win her and also acquire the Chatterton fortune. Chatterton becomes suspicious and by a ruse traps Newton and exposes his plot. Marie and Geoffrey are made happy in the end.

• Crime
• Thriller
• Mystery