Playback
- Episode aired Mar 2, 1975
- TV-PG
- 1h 13m
A gadget-happy inventor murders his mother-in-law; Lt. Columbo is on the case.A gadget-happy inventor murders his mother-in-law; Lt. Columbo is on the case.A gadget-happy inventor murders his mother-in-law; Lt. Columbo is on the case.