The Couple at No. 9 by Claire Douglas
My rating: 5 of 5 stars
A fun and claustrophobic summer read, The Couple at No 9 is everything you want in a thriller: a murder to solve, a clever plot, compelling characters. The tension ratchets tighter and tighter until you’re suddenly flying toward the gasp-worthy end. Irresistibly tense, utterly unforgettable and surprising in all the right places, you won’t want to miss this brilliantly written thriller.