It's a hot summer day when a Mr Ferguson returns to his rooming house and finds his wife dead. There have been a string of murders in Chicago and Frank had to investigate. Ferguson glimpsed the murderer but his description is vague.
| Name | Type | Role | |
|---|---|---|---|
| Bernard C. Schoenfeld | Writer | ||
| David Alexander | Writer | ||
| Vernon Rich | Guest Star | ||
| Barney Phillips | Guest Star | ||
| Allen Emerson | Guest Star | ||
| Madge Blake | Guest Star | ||
| Morris Ankrum | Guest Star | ||
| Kevin Hagen | Guest Star | ||
| Anthony Lawrence | Guest Star | ||
| Russell Thorson | Guest Star | ||
| Maggie Stewart | Guest Star | ||
| Werner Klemperer | Guest Star | ||
| Joseph Mell | Guest Star | ||
| Barbara Pepper | Guest Star | ||
| Don Weis | Director |