'⭐ ⭐ ⭐ ⭐ ⭐ blew my mind! one of the best psychological thrillers i have ever read!' '⭐ ⭐ ⭐ ⭐ ⭐ wow! jaw-dropping' '⭐ ⭐ ⭐ ⭐ ⭐ all expectations were exceeded . . . will have you creeping up to the next chapter, shyly' '⭐ ⭐ ⭐ ⭐ ⭐ had me addicted from the very start and i didn't want to put it down' '⭐ ⭐ ⭐ ⭐ ⭐ wow! this one caught me off guard with so many twists and turns' can you ever really know the people next door? cowerworth is the picture perfect neighbourhood. its manicured lawns and low crime rates make it the ideal place to raise a family. but in a quiet suburb, someone is always watching. and all eyes are on the couple who have just moved in. marcus and gina are everything you could want in neighbours: polite and friendly. they seem to be the perfect fit. except marcus has a secret. and you're his next victim. irreverent, dark and addictive, knock knock is a nail-biting, spine-tingling and thrilling ride, with a killer twist. --- readers are hooked on michelle's debut, go seek: '⭐ ⭐ ⭐ ⭐ ⭐ if i could give this book 6 stars i would. it was an absolutely thrilling ride and i loved it' '⭐ ⭐ ⭐ ⭐ ⭐ absolutely deserves five stars!!!! fast-paced, unputdownable! i absolutely love a badass [female] main character' '⭐ ⭐ ⭐ ⭐ ⭐ i loved this book . . . couldn't read it quick enough' '⭐ ⭐ ⭐ ⭐ ⭐ this was very clever . . . amazing read. i was fully sucked in from the very first chapter' '⭐ ⭐ ⭐ ⭐ ⭐ such an exciting read . . . i enjoyed every moment' '⭐ ⭐ ⭐ ⭐ ⭐ there were so many twists, lies and secrets . . . fantastic' '⭐ ⭐ ⭐ ⭐ ⭐ a real action packed thriller from the very first page . . . so many twists and turns' '⭐ ⭐ ⭐ ⭐ wow! so many crazy twists and turns' from the author of go seek comes a dark, high-octane thriller about a tight-knit suburban community in cork and what happens when one fearlessly protective mother is threatened by her next-door neighbour.