"Lee Hae-Neul, usually an energetic, bubbly, young woman, wakes up to the shock of her life. Following a VERY rough night involving a distasteful breakup and a stolen expensive phone, she finds Seoul completely empty. The bustling of trains and cars is silent, every single person vanished without a trace. Just as panic sets in, a mysterious, painted clown appears, presenting a grim ultimatum with two closed hands: 'Pick one: Red or Blue?' The Blue pill promises a return to her normal, messy existence as a broke and heartbroken person. The Red pill offers the ultimate escape-a brand new life and identity in a restored world, but it means leaving the person she is now behind forever. Faced with this impossible choice, which pill will Hae-Neul choose?