Trudi, Jessica, Katie and Siobhan are united in grief following the death of a loved one. However, emotions run high at the funeral and, with so many questions left unanswered, grief turns to anger and a bitter fight ensues cause a huge riff between the friends. Can they rebuild their friendship? Despite bad feelings that have developed between them, will Trudi, Jessica, Katie and Siobhan get the happy ending they deserve? All the answers are revealed in this final episode of Mistresses.