A fiendish med student sells prescription pads to a drug dealer and murders his partner when she becomes too needy. Mark plays Columbo to nail the murderer.
| Creator | Joyce Burditt |
|---|---|
| Actor | Dick Van Dyke, Barry Van Dyke, Charlie Schlatter |
| Country | United States of America |
| Production | Fred Silverman Company |
| Season 0(6 episode) |
|---|
| Season 1(19 episode) |
| Season 2(22 episode) |
| Season 3(18 episode) |
| Season 4(26 episode) |
| Season 5(25 episode) |
| Season 6(22 episode) |
| Season 7(24 episode) |
| Season 8(22 episode) |
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