When you change the rules of love, can you change the rules of breaking up.

Penny and Aly promised to be together forever, despite opposition from their families, society and the law. They defined their own rules of a committed relationship. Seventeen years later Australia is preparing to vote on same-sex marriage, but their relationship is shifting. Penny wants to revive their love but when Aly suffers a stroke and her hidden affair is revealed, Penny is forced to discover what true love means to her.