All four parts of the Irish miniseries which follows the fallout of an affair between a married lecturer and his student. As Ophelia (Emily Reid) begins spending time with her lecturer, Michael (Emmett J Scanlan) behind closed doors, she has little idea of the repercussions that lay in wait. When a tragic fire at their home kills Michael's wife, Roisin (Catherine Walker), a series of suspicious and twisted events take place that lead Ophelia to question her sanity and the integrity of her lover.