Marie has lived in the same apartment complex ever since she got married. One day, her husband talks her into giving him a blowjob, unaware that their neighbor Yamano is secretly watching. Yamano has lusted after Marie for a long time, so he waits until her husband leaves on a business trip and invites her to dinner. When she drinks until she passes out, he takes advantage of her unconscious state and begins fondling her voluptuous body. But touching her is not enough; with his cock rock hard, Yamano prepares to force things further...