In Lochenky, when teenagers turned 16 they began a different way of falling in love. Girls were given locked lockets, boys received keys on chains and each boy's key only fit one locket, their true love. But what happens when Catalina gets her locket? She feels very different from everyone else her age and she is unsure of how to react to this new change. Will her best friend, Will, help her through the changes or reject her like others have?