On a typhoon day, Shen Ning and Cheng Yuan's fifth love anniversary. Shen Ning is waiting for her boyfriend Cheng Yuan at home. When Cheng Yuan knocked on the door, Shen Ning suddenly heard the voice of her cat Laifu. Laifu warned, "Mom! There are bad guys outside the door! Danger!" Shen Ning thought she heard wrong at first, but Laifu's successive warnings, Cheng Yuan's refusal to accept the video, and the quarrels of strangers outside the door made her confirm that it was not just Cheng Yuan who was outside the door, but his whole family.
