Harley Quinn joins forces with a singer, an assassin and a police detective to help a young girl who had a hit placed on her after she stole a rare diamond from a crime lord.
Stars: [Margot Robbie/Ewan McGregor/Mary Elizabeth Winstead/Jurnee Smollett/Rosie Perez/Chris Messina/Ella Jay Basco/Ali Wong/Matthew Willig/Dana Lee]
