A friend of Barnaby's, Dori Crandall, asks him to help Arlie Burke, a seemingly mentally retarded youth suspected of rape and murder. One victim shows traces of Arley's clay, but Barnaby also finds pipe tobacco and animal hairs, that lead him to the real murderer.
| Name | Type | Role | |
|---|---|---|---|
| Larry Alexander | Writer | ||
| Mills Watson | Guest Star | ||
| Terry Kiser | Guest Star | ||
| Sheila Larken | Guest Star | ||
| Elizabeth MacRae | Guest Star | ||
| Carol Demas | Guest Star | ||
| Janis Hansen | Guest Star | ||
| Clu Gulager | Guest Star | ||
| Jim Bohan | Guest Star | ||
| Anthony Geary | Guest Star | ||
| Ken Sidwell | Guest Star | ||
| Allen Reisner | Director |