When a music-hall dancer is murdered, a moss rose marks the page of a Bible next to her body. Luckily, another chorus girl saw a gentleman leaving the lodgings. She approaches him directly, saying she'll go to the police if he doesn't meet her demands, but he brushes her off contemptuously. When he learns she's dead serious, he tries to buy her off with a thick wad of pound notes. But it's not money she's after; all she wants is two weeks at his country estate, living the life of a lady.

The story has been adapted from the Sir Arthur Wing Pinero play. The title means nothing more than the mid-channel of married life, through a character in the feature likening the roughness of the English channel in the center of the trip across from London to Paris to the woes married folks meet in their wedded life.