The story of "Crying and Sorrow" describes the spread of a new virus. People all over the world are gradually numb to the virus. No one believes that the virus will mutate and the hidden crisis is about to come. Junzhe and his girlfriend Kaiting discussed when the epidemic would end, but life was still the same as usual. One morning, Junzhe rode a bike to send Kaiting to work and separated. The two witnessed attacks by unknown thugs: including the breakfast shop owner being knocked down and bitten by an old lady, the next-door neighbor running wildly on the street with weapons, and riots in various places. Panic and screams spread throughout the city. The infected abnormal humans made a "crackling" sound and were all over the streets. The bloody scenes of being tortured and killed were all over the streets. Who can survive the massacre? How can Junzhe kill his way out and save his beloved girlfriend who is missing?