The central character in The Rideshare Killer is Sarah, a young CEO who has just launched her new ridesharing app. Initially, the app is a huge success, with people flocking to use it as a cheap and convenient way to get around. However, things turn dark when several young women start disappearing after getting into rideshare cars. It quickly becomes clear that a serial killer is using the app to find his victims.
Sarah is horrified when she discovers what's happening, and immediately takes action to try and stop the killer. She works closely with the police, using her knowledge of the app and its users to try and track down the culprit. However, the killer proves elusive, and it becomes clear that he's always one step ahead.
As the death toll rises, Sarah becomes increasingly desperate to stop the killer before anyone else can be harmed. She begins working around the clock, sacrificing her personal life and ultimately risking her own safety in order to bring the killer to justice.
Despite the odds against her, Sarah eventually succeeds in stopping the rideshare killer and restoring order to her app. However, her experiences have left her shaken and traumatized, and she realizes that there is still much work to be done to keep people safe in the world of ridesharing.