简单介绍一下目击者2019的内容？
目击者2019为2019 / 美国 / 惊悚,恐怖,犯罪分类下的一部剧集，由Christopher、Burgart执导，Jesse、Howland、Conner等主演，状态：已完结，SN 资源等线路免费可看。Four college classmates are hunted by a ruthless drug cartel hitman when they inadvertently record a murder while shooting their student film.