On November 30, 2018, 23-year-old Brittany Wallace Shank appeared barefoot and bleeding at a stranger's door in rural Michigan asking for help after a car crash—then vanished into the darkness before deputies arrived, sparking a five-year mystery involving conflicting accounts, deleted social media evidence, and an unidentified man last seen with her. Brittany left her grandmother's house around 8:30 p.m. with an unidentified blonde man in his mid-20s wearing sideburns and a yellow sweatsuit, suggesting she may have picked up a mysterious third party rather than being alone.