Mannix tries to solve the murder of a newspaper columnist, and finds himself dealing the deceast's deranged daughter. She was an eyewitness to the crime but when Mannix tries to get information from her, he plays psychotherapist to get the facts from her.
| Name | Type | Role | |
|---|---|---|---|
| Chester Krumholz | Writer | ||
| Helena Carroll | Guest Star | ||
| Sam Elliott | Guest Star | ||
| Dean Harens | Guest Star | ||
| Barry Atwater | Guest Star | ||
| Beverly Garland | Guest Star | ||
| Dawn Lyn | Guest Star | ||
| Julie Adams | Guest Star | ||
| Rosemary DeCamp | Guest Star | ||
| H.M. Wynant | Guest Star | ||
| Pernell Roberts | Guest Star | ||
| Garry Walberg | Guest Star | ||
| Marvin Chomsky | Director |