Up in Mabel's Room (1944 film)

Up in Mabel's Room is a 1944 American comedy film directed by Allan Dwan, based on the 1919 play by Wilson Collison and Otto A. Harbach, and starring Marjorie Reynolds, Dennis O'Keefe and Gail Patrick. The film's composer, Edward Paul, was nominated for an Academy Award for Best Original Score in 1945.

The film is a remake of a 1926 silent film of the same name, starring Marie Prevost.

Right after Gary Ainsworth (Dennis O'Keefe) is married to his Geraldine (Marjorie Reynolds) and they are about to celebrate one month as a married couple, he is contacted by his ex-girlfriend Mabel Essington (Gail Patrick). Mabel is now in a relationship with Gary's business partner, Arthur Weldon (Lee Bowman), and she wants to return a gift she got from Gary when they were in Mexico City on vacation.

Mabel comes to Gary's office, bringing the gift, and fortunately Arthur is out on business. Gary and Mabel share a taxi back home from the office. Mabel gives the gift, a slip with a loving message from Gary embroidered on it, to Gary. Later, as he gets out of the taxi he leaves the gift behind, wishing to be rid of it, but Mabel picks it up and brings it back to him at his apartment. She threatens to show it to his wife if he doesn't reveal the fact that they had a romance in Mexico City.

The following weekend the two couples all visit Arthur's sister Martha (Charlotte Greenwood), with yet another couple, Alicia and Jimmy Larchmont (Binnie Barnes and John Hubbard). Geraldine notices that Gary is acting suspiciously and keeps an eye on him. For a sum of money, Gary gets Boris the waiter (Mischa Auer) to sneak into Mabel's room and steal the slip back from her.