 Blanche Herbert invites Iris Teleton to tea at a posh restaurant. Blanche and Iris  husband Oliver have been having an affair for some time and she now wants Iris to grant her husband a divorce. Iris flatly refuses but it appears that she too once had an affair, a fact that Blanche is obviously prepared to use to her advantage. Iris is determined not to let her husband go free and sets out to ensure that neither he nor his lover ever spend time together again. Little does she realize exactly what her husband is up to.