The Turn Of The Key by Ruth Ware
In "The Turn of the Key" by Ruth Ware, a young woman named Rowan Caine takes a job as a live-in nanny at a luxurious smart home in the Scottish Highlands. However, the seemingly perfect opportunity quickly turns into a nightmare as Rowan discovers the dark secrets hidden within the house and the tragic events that have unfolded in the past. As strange occurrences escalate and tensions rise, Rowan becomes the prime suspect in a murder investigation, desperately trying to prove her innocence and uncover the truth before it's too late.