The life of deliveryman Shen Yan was torn apart by a phone call from twenty years ago.
The strange "tick" sound on the phone, the old clock with missing needles left by his grandfather, the face exactly like his own in the unfinished building... When he found that the photo of the missing boy from the watch factory fire twenty years ago was exactly the same as his childhood, when the crescent scar on his left hand began to blur, when the countdown to "seven seconds" rang in his ears -
Only then did he understand that some time is not meant to pass, but to be replaced.
"Two, only one can survive."
The writing on the old newspaper glowed coldly, and the person in the mirror was slowly raising his wrist, revealing the same old clock with missing needles. A heavy rain is coming, and he must figure out which one is his true self before the seventh second arrives.
