->''"Well, maybe IT shouldn't drink so much coffee."''
-->- '''[[Series/MysteryScienceTheater3000 Crow T. Robot]]'''

->''"Squeak."''[[note]]''"Fucking squeak."''[[/note]]
-->- '''[[Series/MysteryScienceTheater3000 Tom Servo]]'''

''It Lives By Night'', also known as ''The Bat People'', is an Creator/AmericanInternationalPictures horror film from [[TheSeventies 1974]] that's best known for its appearance on ''Series/MysteryScienceTheater3000''. It's the story of a researcher and his wife who suffer a case of [[IdiotBall The Stupids]] and wander away from the tour group in a cave for a bit of honeymoon-making. Of course, they are attacked by a bat and he gets bitten, and from then on he periodically turns into a sort of half-bat-half-human monster.

His symptoms are first mistaken for rabies, as the [[PornStache Grooviest Doctor in the World]] ascertains. However, this turns out not to be the case. Given the unexplained, violent deaths that tend to follow cases like this, law enforcement becomes interested. Said law enforcement is one loathsome, perverted cop who seems to have a thing for women in vulnerable situations.

Just what will be the fate of our hapless, transforming protagonist? Can he rid the bats from his belfry and return to a normal life? Will he outwit the lecherous Sergeant? Will he lay with his pinched, ferret-y killjoy of a wife to infect her with his were-bat affliction, and then run off to kill a smelly homeless guy? Answer key: ''no'', ''kinda'', ''[[BigNo NOOOOOOOO!]]'' and ''yes''.

For the ''Series/MysteryScienceTheater3000'' episode see ''[[Recap/MysteryScienceTheater3000S10E10ItLivesByNight here]]''.
!!Tropes found in ''It Lives By Night'':

* AbhorrentAdmirer: Sgt. Ward, a.k.a. Sheriff Menacing W. Pervert.
* TheBadGuyWins: Well, your precise definition of "bad guy" may be important here, but at the end of the movie [[spoiler:John, who you may remember murdered several people, is at large and remains a danger to all. His wife supports him and implicitly becomes a bat person herself. Sgt. Ward is killed by a bat... swarm. Bats swarm, right?]]
* BatOutOfHell: A werewolf version of the "Dire Bat" variant as well as a swarm.
* CarChase: Man, for a crazy guy Johnny drives like a maniac! Wait...
* CatapultNightmare: Several times. At one point he just darts up and starts screaming.
* CatchPhrase: Ward's "Know what I mean?" His last utterance is a DarkReprise / PreAssKickingOneLiner.
* CorruptCop: Sgt. Ward.
* FateWorseThanDeath
* GrayAndGreyMorality: Our choices for hero are the [[CorruptCop corrupt,]] [[AbhorrentAdmirer leering sheriff]] or the {{Jerkass}} who turns into a bat and murders people (and later admits that he likes it and doesn't intend to do anything about it).
* HeroAntagonist: Sgt. Ward may be a slimy person, but he's the only one who seems to be aware that Johnny is trouble. Too bad he's too inept to do anything about it.
* {{Jerkass}}: Johnny seemed to be an asshole even before he was bitten, especially to his wife Kathy.
** Made even more cringe-inducing by the fact that the two actors who played Johnny and Kathy are real-life husband and wife.
** Perhaps justified when Kathy explains to Doctor Mustache Love that Johnny's bat-involved symptoms started well before he was bitten, though they never attempt to explain that.
* MonsterMisogyny: John kills four people, on-screen (not counting Ward, who was killed by a bat swarm). The only one not a young, attractive female was a drunk hobo - who got several lines of dialog before dying.
* MurderTheHypotenuse: Implied with Ward.
* ObviouslyEvil: John isn't ''evil'' per se, but his guilt is very apparent to Sgt. Ward and the viewer. Too bad Ward was too stupid to do anything about it when he had the chance.
* PornStache: Dr. Mellow Ski Bum sports an epic one.
* WhamLine: When Kathy and Ward arrive at the cave at the end, we get this from Kathy...
-->'''Kathy:''' [[FaceHeelTurn Goodbye, Ward.]] (''sics a swarm of bats on him'')