Sophia, Safa, Ella, Ajola and Caoimhe have been friends since school. They are difficult, unlikeable women; funny, sharp and clever ones - the sort that would have probably ended up burned at the stake a few hundred years ago. When one of them is about to be framed for murder, they inextricably bind their fates together via some bin bags, a spade and a promise never to tell. Afterwards, they decide to separate to ensure the safety of their secret, leaving each of them to navigate the daily challenges of womanhood alone. But when an anonymous blackmailer threatens to expose them years later, the group must come back together to get their stories straight - and find out who is behind their torment. But is it already too late?