Loyalties is a 1922 play by the British writer John Galsworthy. It was staged at St Martins Theatre and ran for over a year. Galsworthy described it as "the only play of mine which I was able to say, when I finished it, no manager will refuse this". The film addresses the theme of anti-Semitism. The film was part of an increased trend depicting mistreatment of Jews in British films during the 1930s, tied to the rising tide of anti-Semitism in Nazi Germany, but is unusual in its depiction of prejudice in Britain as most other films were set in a non-British, historical context. While a houseguest at an upper-class gathering, wealthy Jew Ferdinand de Levis is robbed of 1,000 pounds with evidence pointing towards the guilt of another guest, Captain Dancy. Instead of supporting De Levis, the host attempts to hush the matter up and when this fails, he sides with Dancy and subtly tries to destroy de Levis' reputation. When Dancy is later exposed, and commits suicide, de Levis is blamed for his demise.