The Stooges are bellhops at Hotel Snazzy Plaza, and pound each other in order to get some face time with an attractive woman (Christine McIntyre, in her debut appearance with the team). Unfortunately, she has a mean-tempered husband (Vernon Dent) who happens to excel in knife throwing. The husband is also secretly importing Lupe the Wolf Man (Duke York) who goes berserk when he hears music. Later on, when Curly is cleaning their room, he snaps on the radio, and the wolf man goes on the rampage.
- Moe Howard as Moe
- Larry Fine as Larry
- Curly Howard as Curly
- Christine McIntyre as Mrs. Leander
- Vernon Dent as Mr. Leander
- Duke York as Lupe the Wolf Man
Curly Howard's voice begins to deepen with this film. Since his 1940 divorce from Elaine Ackerman, Curly had lived a wild life, making merry on a regular basis, and drinking until the wee hours of the morning. Columbia cinematographer Henry Freulich stated in a 1984 interview that it was not unusual to see Curly stumbling into work looking like "he had himself a heluva time!" By 1944, the effects of Curly's lifestyle began to catch up with him. Idle Roomers marks the first time his acting seems a little slower. The deeper voice confirms this assessment.
- The title Idle Roomers is a pun on "idle rumors." The plot device of bellhops pursuing the affections of an attractive female hotel guest would be used in the 1953 Woody Woodpecker cartoon Belle Boys.
- Idle Roomers marked the first appearance of regular Stooge co-star Christine McIntyre who would predominantly worked with the team during the Shemp Howard era.