The Sister-in-Law: A BRAND NEW utterly chilling psychological thriller from Joanne Ryan for 2025

Would you invite a stranger in?

When Megan loses her beloved husband in a tragic car accident, she feels like it’s her own life that has ended. She feels too young to be a widow. Walking around the house that had been their home – so quiet without him – nothing feels the same.

But at his funeral, she sees a person she doesn’t know. The heavily-pregnant young woman introduces herself as Emily, her husband’s estranged sister. She explains how she’s been searching for her brother for years, but – as she bursts into noisy sobs – she knows she’s too late now.

Megan finds herself taking pity on the sister-in-law she’d never met. And quickly Emily becomes more and more a part of her life, even moving into the spare room of her house.

It feels less empty than before, which at first is comforting to Megan. But – even when it’s a relative of the man you loved more than anyone – can you trust a stranger?

‘The final twist was jaw-dropping, rounding out a rollercoaster of a story. The Sister-in-Law is a psychological thriller that fans of Lisa Jewell and Freida McFadden won’t want to miss.’ ⭐⭐⭐⭐⭐ Reader Review

‘WOW what a story!! I have never been blown away by so many twists and turns before. It was certainly a page-turner and I managed to devour it within 24 hours.’ ⭐⭐⭐⭐⭐ Reader Review

‘The ending absolutely shocked me!Perfect for fans of Frieda McFadden. Definitely a page turner for me!!!’ ⭐⭐⭐⭐⭐ Reader Review

‘I couldn't turn the pages fast enough... twists and turns that will knock your socks off, this is a gloriously wicked must-read! The twists do not stop. The reader is deceived again and again! If you think you have it all figured out, think again!’ ⭐⭐⭐⭐⭐ Reader Review

‘WOW! This was the first book I've read of Joanne Ryan's but it certainly won't be the last! It had an extremely gripping storyline from the very beginning and a few phenomenal twists!’ ⭐⭐⭐⭐⭐ Reader Review

‘What a PLOT!!!! Amazing, who would have thought of it!... WOW I NEVER saw the ending coming. FANTASTIC... HOLD ON FOR THIS THRILL OF A RIDE!!!’ ⭐⭐⭐⭐⭐ Reader Review

‘So good!!! Brilliantly written and certainly kept me on the edge of my seat.’ ⭐⭐⭐⭐⭐ Reader Review

‘A web of deceit and betrayal... a suspenseful atmosphere filled with unexpected twists and turns... a gripping mystery filled with emotional complexity... LOVED IT!’ ⭐⭐⭐⭐⭐ Reader Review

‘Blindingly excellent ... This book should come with a disclaimer as once you start reading you aren’t going to want to walk away.’ ⭐⭐⭐⭐⭐ Reader Review

‘Wow! Another great read by Joanne Ryan! Definitely worthy of 5 stars. This grabbed me from the get go and just never let go. Excellent storytelling. Deliciously dark and twisty.’ ⭐⭐⭐⭐⭐ Reader Review