Colin Walcott's wife Tess and daughter Cat discover that he had a long-term lover Marilyn, with whom he produced a daughter Cath. Tess, enraged, tosses out Colin's possessions, while Cat is enraged with Marcus, her boyfriend, after a text message he sent to another female. When the two half-sisters meet, a disagreement about where to spread their father's ashes ensues, prompting police involvement and the discovery that he may have been having an affair with another woman.