No one even knew they were together. Now one of them is dead.Fifty-six days agoCiara and Oliver meet in a supermarket queue in Dublin and start dating the same week COVID-19 reaches Irish shores.Thirty-five days agoWhen lockdown threatens to keep them apart, Oliver suggests they move in together. Ciara sees a unique opportunity for a relationship to flourish without the scrutiny of family and friends. Oliver sees a chance to hide who - and what - he really is.TodayDetectives arrive at Oliver's apartment to discover a decomposing body inside.Can they determine what really happened, or has lockdown created an opportunity for someone to commit the perfect crime?Crime by the Book