Well-off slacker Ben Caserley and his sweet-natured best friend Alice Farrow have planned to propose to their girlfriends on the day of the Royal Wedding. But when Ben's frustrated girlfriend Katharine dumps him two days before listing five character traits she's not happy with, Alice sets him a challenge to prove Katharine's list wrong and win her back before the wedding bells call time on his relationship. Set on a sunny summer's day across celebratory London, and against Ben's memories of his disintegrating relationship - Red Heart is a quirky romantic comedy following Ben and Alice on a journey that will change their lives forever.