Tijuana recorded more than 2,500 homicides in 2018, one of the deadliest years in the city's history, and this film goes looking for why. Cameras follow the fallout of cartel wars fought over smuggling routes into California, tracking how narco-trafficking, drug addiction, and grinding poverty feed a body count that averages seven murders a day. Interviews with residents describe living alongside that math as routine, while police officers and local experts lay out how corruption inside law enforcement lets the violence continue unchecked. The film moves through the neighborhoods most affected, from the border crossings where drugs and money change hands to the streets where addicts and dealers operate in plain view, building a picture of a city economy built partly on the drug trade. Rather than a single narrative arc, it works as a survey of interlocking causes, letting the people who live with the violence explain what outsiders usually only see in crime statistics.