Hong Jihyo fought to ignore the reappearance of the unsettling presence that had haunted her past, but its insistent summons grew increasingly difficult to disregard.

With conventional avenues of inquiry exhausted, Jihyo seeks out a community of enthusiasts devoted to the subject of unidentified flying objects, but finds herself met with suspicion and outright hostility.

Huh Bora offered her assistance to Jihyo, stipulating that the investigation be documented for Jihyo’s video series. Together, they proceeded to Siguk’s apartment.

A disagreement had fractured the friendship, sending them on diverging paths. Jihyo sought recourse from the authorities, while Bora shadowed a real estate agent whose demeanor struck her as unsettling.

A curious discovery on a pilfered hard drive led Jihyo and Bora to an impulsive act: they slipped into the back of a vehicle, finding themselves deposited near a remote dwelling.

The journey to the psychiatric hospital proves fraught with delays for Jihyo and Bora. Meanwhile, Kim Byungjo and Oh Sehee seek information from a retired detective regarding a case of mass suicide.

Moon Hyungtae attempts to extract information from Jihyo by affixing her to a device designed to manipulate the subconscious. Meanwhile, Seo Hwajung makes a desperate effort to locate the person who might rescue her.

Jihyo returned to the place of the strange event, seeking further understanding from her family. Meanwhile, Kim Chanwoo took a person captive within the confines of Cafe Universe.

Funeral arrangements proceed with quiet diligence, until an unexpected visitor disrupts the somber routine. An acquaintance from years gone by shares recollections of Hyungtae’s history.

Hyungtae's unsettling confession takes Jihyo by surprise, placing her in perilous circumstances. Meanwhile, Bora pursues a strange, airborne phenomenon.