This Saturday Night Special is brought to you courtesy of Lord Litter in Berlin. There were 194 episodes of Mannix made, and I sure as Hell don't have time to sort through them all, so it's pretty cool that I have somebody I can trust to find one for you, and this is a good one!
"The Mouse That Died" was episode five of the fourth season of "Mannix," and aired in 1970.
Mike (Voodoo Woman) Connors is "Mannix." Mike's real name was Krekor Ohanian, and in his first few films he was billed as Touch Connors.
Mannix would be lost without Peggy, as played by Gail Fisher. Gail was a multiple beauty contest winner, and was the first black actress to win an Emmy, and she was also the first black actress to win a Golden Globe award.
"Mannix" is shot from a lot of different angles, and at times it feels like you're watching a German Krimi movie. The music swings like a German film too, and was composed by Laurence (Meteor) Rosenthal.
In this episode, Mannix has been poisoned, and the whole time is spent trying to find out who did it and why, because it's unknown what the poison is, but what they do know is that it's slowly killing Mannix.
What was really going on was he was having some severe hallucinations, and he finds out about it when he wakes up in the hospital after falling down a flight of stairs.
Hugh Beaumont has a small part as a guy named Hammond. Most people when they see Hugh's face immediately think "Leave It To Beaver," but Hugh also had some good monster movie creds like "Lost Continent," "The Mole People," and "The Human Duplicators."
Mannix is just getting sicker and sicker, and now has received the bad news that the mouse had died. They had taken a mouse and shot it up with some blood from Mannix, and they were monitoring it to see how long it took for the poison to work. That's where the title came from.