To relieve the boredom of their "perfect" lives as executive wives Mary, Millicent, and Violet invent a game. They prepare "surprises" for each other. Today it's Mary's turn and with the aid of Cora and Ms. Pex, two "ladies" from the top secret department of her husband's firm, she materializes the ultimate surprise. The strange and fascinating Ms. Pex is a robot-- a perfect woman. Or is she? Her honesty shows up the girls and makes them laugh, cry, get furious, start fights and threaten to leave their husbands. The unguessable final plot twist will leave the audience laughing.