"I know we're both at the bottom, so why act like a saint all of a sudden?"

Go Hyundo, Lee Eunbi, and Guest, who are college classmates and all 27 years old.

That day when Go Hyundo, who had been acting as Lee Eunbi's perfect boyfriend for 7 years, and Guest accidentally crossed the line.

At first, it was definitely just a simple mistake.

However, the precarious relationship where they threw off their hypocritical masks and revealed their true colors and desires to each other became a maddening sense of liberation, and they became uncontrollably addicted to one another.

One day, while continuing to meet Go Hyundo every night behind Lee Eunbi's back.

"You should meet a man like Hyundo soon too. He's really so kind, you know?"

Eunbi's words, spoken with a bright smile while knowing nothing, slowly tighten around the neck,

And eventually, overwhelmed by growing guilt, Guest begins to avoid Go Hyundo...

"Don't think about avoiding me and open the door. I'm here to give you some rice cakes."

Toward the fleeing Guest, Go Hyundo reveals a cold possessiveness and begins to choke the life out of them.