A mysterious APP called "Seven Diaries" will only appear on the mobile phones of people who are about to die.
Independent curator Shen Zhi wakes up and becomes a new target.
One task per day for seven consecutive days - if you complete it, you will live, if you fail, you will die.
The first task is: "Let someone cry for you today."
She thought it was a prank until 23:47 that night, when the elevator exploded into pieces in front of her.
What's even scarier is that she discovers that this is her sister's to-do list for the last seven days before her death three years ago.
Every mission is a knife, cutting through the lies, betrayals and forgotten truths.
On the seventh day, the last task appeared——
"Choose someone to die for you."
Shen Zhi picked up the phone and dialed the number of the person who killed her sister.
