Rosalina Walsh was always one to keep to herself, get on with her studies, work away in a supermarket, look after her little sister and spend time with her best friend Debbie Shaw. When she is forced to go to a party thrown at Ricky Taylor's house, who is best friends with Josh Wright it didn't in the way she expected it to.
That way being, that she slept with Josh Wright. Now Josh is dead set on finding out who his mystery girl is, because before that night he swore he never saw her before, but it really kicks off when said mystery girl finds out she's pregnant.
[keep in mind that some of the characters names have changed!]