In 1983, tragedy strikes as Santoni meets her untimely demise. For four long and agonizing decades, her family relentlessly searches for their missing daughter, nearly losing all hope. However, a glimmer of hope emerges when a compassionate priest establishes a connection with her restless spirit, haunting the very highway where she met her tragic end. United by an otherworldly bond, they embark on an extraordinary journey to uncover the mystery surrounding her murder. Santoni, now known as "Highway Sheila" by the media, has spent 40 years seeking justice from the afterlife, her story unfolding as they delve deeper into the chilling truth. With the invaluable assistance of two passionate detectives, they follow a trail that leads to her killer. Together, they confront the darkness that shrouded Santoni's fate and, at long last, bring closure to her grieving family.