The Body Beautiful

Eve Mason, secretary to noted Hollywood pin-up photographer Adam Roberts, receives a visit from her younger sister Laurie, who is herself an amateur photographer. Laurie secretly takes a compromising photograph of Eve as she emerges from the shower wearing nothing but a towel. Laurie then sends the picture to Adam, who does not realize that the woman in the photograph is his own secretary, as her face is obscured, and he enters it into a contest. (imdb)