Into the lonely life of Se-jin walks the seemingly perfect man, Do-young.
But the happiness doesn’t last: Do-young’s escalating gas-lighting wears Se-jin down.
When she finally decides to end the relationship, she glimpses his frighteningly psychotic side…

Can Se-jin break up with him safely?

“You’re the one who made me this way.”

From that moment begins a deadly breakup—
a fight where only one may survive.