As the coronavirus epidemic rages around the world, this article explores how viral films respond to social, cultural, and political issues through crisis narrative imagination in a contrasting manner between reality and image narrative. At the same time, it has become an ideological pusher for a prevalence of prejudice and discrimination. After briefly sorting out the genre and development of viral films, this article will discuss the global context produced by this film genre, and then single out three key elements of viral film narrative, namely the exploration of the source of the disease, the isolation and conflict setting, and the cultural landscape of the doomsday for further cultural and ideological analysis.