Becca is a world-famous supermodel, posing for the camera in a very skimpy outfit. Only the photographer thinks she's also a world-famous SPY.
The photographer wants to know who Becca's spying for. When she claims ignorance, he chloroforms her and ties her up. When she comes to before he's finished binding her, he chloroforms her again. Eventually, he also gags her.
The photographer ties up and chloroforms Becca over and over again, in several different positions. Finally, he carries her out over his shoulder.
We next find Becca asleep in the studio in a white, lacy (and also sexy) dress. The photographer insists that Becca had been dreaming about being tied up and chloroformed.
Becca resumes posing for the photographer. However, when she finds evidence that she wasn't dreaming about being tied up, the photographer chloroforms her again and again ties her up, and knocks her out hand-over-mouth (eye roll!), and ball-gags her.
Eventually, she manages to talk the photographer into untying her, at which time she chloroforms HIM and escapes.