Summary: Caught in the Web starts with an ordinary scene: On a bus, a young woman Ye Lanqiu (Gao Yuanyuan) refuses to give her seat to an aged man. TV station intern Yang Jiaqi (Wang Luodan) captures and uploads the incident on the Internet. After watching the clip, TV station journalist Chen Ruoxi (Yao Chen) airs this news, causing Ye to be the target of human flesh search.
Ye dies under great pressure. Netizens later discover that Ye had been diagnosed of an incurable disease when she refused to give her seat. A new human flesh search is started on Chen, causing her to lose both her job and lover.
Adapted from a popular web novel Human Flesh Search by Wen Yu, the first web novel to win the Chinese leading literature award Lu Xun Literature Prize in 2010, the movie makes a few changes to the original.