A Co-respondent's Course1931

Solicitor James Lord is in love with Nellie. She tells him she is going away for a week with her friend May to Portsea where there are many nice boys. Nellie gets the dates wrong and goes a day early. When James finds out he worries she is cheating on him. His client Rouse comes in and says he is convinced his wife is cheating on him a man called Dane. They hire three private eyes from Sleath's Detective Agency, Hall, Ratchet and Moon, to keep an eye on women.