简介：<p>　　Haunted by the memory of Walter Holderlin, a soldier he killed during World War I, French musician Paul Renard (Phillips Holmes) confesses to a priest (Frank Sheridan), who grants him absolution. Using the address on a letter he found on the dead man&#39;s body, Paul then travels to Germany to find his family.<br/>　　As anti-French sentiment continues to permeate Germany, Dr. Holderlin (Lionel Barrymore) initially refuses to welcome Paul into his home, but changes his mind when his son&#39;s fiancée Elsa identifies him as the man who has been leaving flowers on Walter&#39;s grave. Rather than reveal the real connection between them, Paul tells the Holderlin family he was a friend of their son, who attended the same musical conservatory he did.<br/>　　Although the hostile townspeople and local gossips disapprove, the Holderlins befriend Paul, who finds himself falling in love with Elsa (Nancy Carroll). When she shows Paul her former fiancé&#39;s bedroom, he becomes distraught and tells her the truth. She convinces him not to confess to Walter&#39;s parents, who have embraced him as their second son, and Paul agrees to forego easing his conscience and stays with his adopted family. Dr. Holderlin presents Walter&#39;s violin to Paul, who plays it while Elsa accompanies him on the piano.<br/>　　The film&#39;s original title, The Man I Killed, was changed to The Fifth Commandment to avoid giving &quot;wrong impressions in the minds of the public about the character of the story.&quot; It ultimately was released as Broken Lullaby.</p>…