Amanda loves her sister Imogen but envies her too. Imogen is married to a handsome doctor, Ben, she has a lovely house in the country, and is about to give birth to twins. She is also very beautiful. Imogen tells Amanda about the secret affair she's having with Cavan.
Ben arrives on Amanda's doorstep determined to find out the truth, sympathy unleashes Amanda's passion for Ben. Ben confronts Imogen, armed with the name of her lover. He keeps his fling with Amanda a secret, and Amanda is too ashamed to tell Steve what has happened or to warn Imogen.
Cavan and Imogen plan their future together, while Amanda hears shocking news from her mother. Amanda tells Ben that she's having his baby and Cavan shocks Imogen by revealing that he doesn't want the twins.