Larry Durrant is a bit of a disappointment to his family, and even more so when he kills Henry Wallen, the disreputable foreign husband of his lover Wanda. The long-missing Henry shows up on Wanda's doorstep and threatens to kill her. Larry accidentally kills him in the ensuing fight. Larry stows Henry's corpse away in an abandoned archway at Glove Lane. Afterwards he goes to his do-good brother Keith for some advice. Keith is a successful attorney with a brilliant mind, well on his way to becoming a judge. When Larry tells him what he has done, Keith wants him to leave the countryfor a while, and spare them both some trouble, not spoiling Keith's career by having a murderer for a brother and saving Larry from going to jail. However, Larry refuses to leave, and returns to the alley where he left the body. There he encounters John Evan, a former minister turned bum. Evan unfortunately picks up the gloves Larry had dropped in the street, which results in him later being arrested for Wallen's murder. The police claims there is enough circumstantial evidence with the bloody gloves he had on him. When Larry learns of Evan's arrest, he considers himself a free man and decides to marry Wanda. For the next three weeks before Evan goes on trial, they plan to squeeze in 30 years of idyllic life because Larry will then turn himself in for murder. On the day that Evan is sentenced to hang, Keith begs his brother to remain silent and let the condemned man die. Larry, set on doing the right thing for once in his life, refuses and leaves for the police station, only to be stopped on the steps by Wanda. She has read the newspaper, telling of Evan's demise from a heart attack on his way to jail.
Producer Alexander Korda tooled 21 Days to be a star vehicle for Vivien Leigh, but his constant interference caused great problems on the set. He rearranged shooting schedules and even added a sequence; director Basil Dean reputedly never saw a rough cut or the finished product. The title change to 21 Days was attributed to Korda. Principal photography took place in 1937 at Denham Film Studios, with the production shot in black and white. Vincent Korda, Alexander's younger brother, was the art director on 21 Days and responsible for the sets.
Reception
With Vivien Leigh's star turn due to her performance as Scarlett O'Hara in Gone with the Wind, Korda shelved 21 Days for two years before releasing it to Columbia Pictures. Bosley Crowther in his review for The New York Times, said, "True, it is no deathless drama—is little more than a cultivated penny-thriller, in fact—and Miss Leigh, as the party of the second part, is required to devote her charm and talents to nothing more constructive than making the apparently inevitable parting from poor Mr. Olivier seem exceedingly painful, indeed. But it is a highly charged "meller," rigid throughout with suspense and nicely laced with much tender emotion."