While waiting to finalize their divorce, Chen Miaoru and Ren Xiaoguo look back on their life together and begin to have second thoughts.
As Miaoru reflects on their hasty wedding, Xiaoguo finds a mysterious computer screen in the bathroom that replays scenes from their relationship.
When the computer offers Xiaoguo a chance to alter the past, he jumps back in time to the day he and Miaoru met their dog, Lulu.
Xiaoguo tries his best to get along with Lulu and shield the dog from his scheming boss. A meeting with the lovely Ms. Qi leaves Xiaoguo disoriented.
Miaoru is pleased by the sudden changes in Xiaoguo -- until she discovers he's been hiding something. Xiaoguo's boss erupts when he learns about Lulu.
With his marriage on the brink of collapse again, Xiaoguo begs for another chance to make things right. But his plan doesn't go as expected.
A last-second attempt to avoid Ms. Qi leads Xiaoguo into a maddening ordeal with the old woman. Back at the computer, he makes a disturbing discovery.
As Xiaoguo tends to the old woman in the hospital, Miaoru tries to deflect her father's suspicions about the unfurnished apartment.
Xiaoguo returns to the apartment determined to be a better husband and son-in-law. The old woman confesses a secret to Miaoru.
Miaoru's sister treats her to a shopping spree, while Xiaoguo visits with his in-laws and hatches a new plan to turn his life around.
After learning about Miaoru's secret pregnancy, Xiaoguo tries to turn back the clock again. But his plan hits a snag when the computer crashes.
Xiaoguo hits the reset button and tries to prove to Miaoru and her family that he's up to the challenge of fatherhood.
Xu Maoheng urges Xiaoguo to get creative if he wants to start closing deals. The boss's precocious daughter makes a surprising announcement.
When his best clients suddenly turn frosty, Xiaoguo grows desperate to make a sale. Miaoru uncovers troubling news while visiting her in-laws.
Xiaoguo enjoys the fruits of his big sale but is plagued by guilt. Meanwhile, he discovers that Miaoru secretly returned to work.
A fight with Cai Youmin and a painful setback for Miaoru leave Xiaoguo reeling. He learns that his chances to alter the past are running out.
Traveling back to Christmas Eve, Xiaoguo tries to fend off Miaoru's advances so she won't get pregnant. He confides in his brother about the computer.
While Fang Yanxiu crashes at their apartment, Miaoru and Xiaoguo book a night at a love hotel. But they're each pulled away by urgent phone calls.
Xiaoguo begins to obsess over the link between Miaoru and Yanxiu's husband. In a flashback, Xiao Pinyang tries hard to win Miaoru's heart.
After Yanxiu admits her deception, Xiaoguo grills Miaoru about her past boyfriends. A lunch with the old woman takes a surprising turn.
Inspired by the old woman, Yanxiu insists that the two couples spend New Year's Eve together. But the outing creates even more tension.
When Cai Youmin reveals that Yanxiu bought a property from Xiaoguo, it's Miaoru's turn to be suspicious. Xiaoguo lets a secret slip during a fight.
A flashback traces the first sparks of attraction between Miaoru and Xiaoguo -- and the next step in Yanxiu's relationship with Mr. Xiao.
Miaoru's heartbreak turns to worry when Yanxiu disappears. Xiaoguo turns back the clock to try a new approach to the holiday weekend.
Xiaoguo figures out where Yanxiu is hiding, but the old woman refuses to let him in. Meanwhile, Xiaoguo's father asks to meet with Miaoru.
During a drunken celebration, Yanxiu confesses her betrayal, putting both her marriage and her closest friendship at risk.
To help out Cai Youmin and save money, Xiaoguo and Miaoru move back in with his family. But the adjustment proves tougher than they expected.
A disturbing scene in the computer sends Xiaoguo into a panic. He soon learns that he's about to face his biggest challenge yet.
Xiaoguo returns to his wedding day and experiences it in an entirely new way. But the pleasure is cut short by another sudden shift.
Lonely and disoriented, Xiaoguo tries to piece together what happened after the accident. Miaoru visits the old apartment and finds a happy surprise.
After meeting by chance, Miaoru and Xiaoguo find themselves back on the brink of divorce. Can they express their true feelings before it's too late?
