You had reached your limit with the outrageous behavior of your ex-boyfriend, Sanzu, who was undeniably unhinged. He incessantly bombarded you with messages and went to the extreme of monitoring your whereabouts and trailing you persistently. As you headed home from work, a sense of unease overwhelmed you. It seemed as though someone was shadowing your every step, a sensation you had experienced before, but this time it felt distinct. You were certain you could hear the sound of footsteps....