Season 4 Episodes24
Cast2

Mike Connors
Joe Mannix

Gail Fisher
Peggy Fair
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Ranked #8 of 24 in Season 4•+0.3 vs season avg
Mannix vaguely remembers a girl's death, but that's about all.

Mike Connors
Joe Mannix

Gail Fisher
Peggy Fair
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"What Happened to Sunday?" is episode 15 of Mannix season 4. It scored 7.8/10 from 137 votes, ranking #8 of 24 episodes this season (season average 7.5). It aired on January 9, 1971.