Some doors should never be opened...

After a heart-wrenching break-up, Lauren Williams is seeking a fresh start. A work course offers the perfect escape, but when the venue's accommodation is fully booked, she's placed with an elderly couple in their spare room. It's not ideal, but Lauren resolves to make it work.

As soon as she enters the house, she feels uneasy. Her hosts seem nice, but there's something odd about them, and a locked room upstairs piques Lauren's curiosity. After hearing mysterious noises at night, she can't shake the feeling there's something sinister going on in the house.

What's behind the locked door? Who is the couple's mysterious daughter? And can Lauren even trust her own instincts?

Desperate for answers, she breaches the forbidden room, where she uncovers a chilling secret that changes everything. Entangled in a twisted web of lies, she realizes the once-kindly couple may not be who they seem.

With her safety becoming increasingly precarious and her tumultuous past refusing to let go, can Lauren unravel the truth and get out before it's too late?

From bestselling author M.I. Hattersley, The Spare Room is an unputdownable psychological thriller perfect for fans of Frieda Mcfadden, Daniel Hurst, K.L. Slater, Miranda Rijks, Iain Maitland and Harlan Coben.