Special agent Tsubaki is ordered to locate the hideout of a slave-trafficking organization. She seduces an executive over drinks, extracts the information and infiltrates the base, only to lose consciousness in a poison-gas trap after a gunfight. The criminals bind her tightly with hemp rope and rape her while she is helpless, shredding her pride with relentless stimulation until the rope itself drives her to orgasm and total submission. Days later she finds an opening and escapes, but something ominous is waiting ahead.