Adaptation of the novel \"Big Little Lies\" by Liane Moriarty. The Delaney family seems quite prosperous from the outside. Former tennis coaches Joy and Stan are the parents of four adult children. After several decades of marriage, they have finally sold their famous tennis academy and are ready to enjoy their retirement. When Joy suddenly disappears and suspicion falls on her husband, their four children argue amongst themselves. Some take their father\'s side, while others do not. Like in doubles tennis, a battle of duos begins. But after Joy\'s disappearance, her children are simply forced to look at their parents\' marriage and their family history in a new way...