Heyi Original: Naive Sisters Bound by Deceit

A cunning human trafficker, disguised as a property manager, gains entry into an apartment. The unsuspecting younger sister opens the door, only to be drugged and hogtied by the intruder. Later, her older sister, a sex worker, returns home. Unable to locate her sibling, she too falls victim to the traffickers who were patiently waiting inside.

The two sisters are then subjected to further manipulation. However, the tables turn unexpectedly when an accomplice arrives, overpowering the initial captors. The sisters find themselves re-bound, now alongside the female prostitute who was also ensnared in the unfolding drama.

The accomplice engages in foot play with the three women before they are ultimately bound together, resembling a team of horses, and led away.