When a good-for-nothing man named Dan is stabbed to death and his arm broken, Charlie Chan is on the case. His first clue comes from the victim's sister, who noticed a prowler wearing a glow-in-the-dark wristwatch.
| Directing | Hamilton MacFadden | Director |
| Writing | Earl Derr Biggers | Novel |
| Writing | Lester Cole | Writer |
| Writing | Marion Orth | Writer |
