An unexpected visit from a stranger brings dark news for widowed Christine. Her home health monitor, the House, has concerns over her safety. Her House can prove that she forgets things. Her House insists she is at risk. And the House is never wrong.Christine must be assessed, and, if necessary, treated against her will in hospital.Determined developer Tom O’Sullivan, sensing an opportunity to finally grab Christine’s house from under her feet, also begins to turn the screw. But this is her home, not just some vacant plot to build on. She won’t budge, not at any price. O’Sullivan, however, is not the type to take no for an answer. But though his harassment threatens violence, she can prove nothing to those in authority. Her sleep is broken, her appetite stolen, and inexplicable things are happening within what feels increasingly like a prison. Could the House be right?With the stakes rising by the hour, Christine must fight to save her home and her sanity. But what chance does she stand with her every action scrutinised by the walls surrounding her and the tenacious O’Sullivan circling outside like a vulture?In her desperate struggle for independence, Christine must learn to live by one simple maxim. And if she forgets it, even for a minute, it could seal her doom. For in the world of health algorithms, the House rules.