Walter Grenham, who has a weakness for women, persuades an old friend, Janet Livingstone, to marry him, promising to remain faithful to her. They then prepare to embark for New York in the company of a young married couple, Betty and Johnny King, but, by misadventure, Betty and Walter are left behind in Havana. Walter takes a plane to Key West, where he overtakes Janet and explains everything to her satisfaction; Betty goes to New York and finds her husband in the arms of a chorus girl. With great difficulty and misunderstanding, Walter reunites the Kings and finally prepares to settle down to domestic bliss.