Serena has been on her own for 4 years. She has no family she knows about and sells cupcakes for a living. She lives in a decent hotel and has street smarts. She knows what dangerous robbers and rapists to avoid and how to outsmart them. She knows much about who's on the streets, she forgets about what drives on them. Running recklessly into the empty cold streets, a car comes out of nowhere and hits her. With that, Serena isn't just a girl trying to make enough money to survive. Serena learns that everything bad in life has a silver lining.
Will I Am from the Black Eyed Peas, takes a late night ride trying to find out a reason to continue making music. His life feels like a pattern until he literally hits Serena.