A distraught Gráinne struggles with facing the instability of David's health, but a dark bleak cloud arises over the two when Gráinne is faced with another devastating blow, leaving her vulnerable and questioning the meaning of life. It all begins to click into place with Mo, and she now realises that her traumatic encounter with Anto is all down to Colm. How long can O'Shea hide the truth about what really happened at the house the night Eric fell down the stairs? When Niamh starts asking questions, O'Shea has no choice but to lie, but how long can she keep the façade up?