Blackmailed! (1997)

Blonde business executive Cindy Martin has it all - brains, power and beauty. However, she has just found out that an employee has a file with details of a very shady and very illegal business deal Cindy was involved in. His price for silence? Cindy must do a bondage video. The high-powered blonde executive is forced to endure tight bondage or go to jail. The victim finds herself wrapped in rope (lots and lots of rope!) and thoroughly gagged repeatedly with cloth, tape and a large red ball. The victim starts off tied wearing street clothes, which are gradually shed as the bondage continues.