Homicidal maniac Marc is constantly driven my demons buried deep within his soul while his estranged sister Wendy is Marc's polar opposite and lives life fast and hard without a second's thought to the consequences. Their separate paths will eventually cross, but will it be on the road to salvation or the highway to hell?

Somewhere in the distant future, The Girl is alone. She is the last of her people, the others having died in a generations-long war that the girl continues to fight with the assistance of a group of antiquated robot helpers and soldiers.

This is Caroline tells the story of how a darkly comic accident, misinterpreted as a suicide attempt, forces a girl to acknowledge real feelings of loneliness.