One simple mouth swab is all it takes. A quick DNA test to find your perfect partner – the one you’re genetically made for.

A decade after scientists discover everyone has a gene they share with just one other person, millions have taken the test, desperate to find true love. Now, five more people meet their Match. But even soul mates have secrets. And some are more shocking – and deadlier – than others...

'I just couldn't stop reading'

'Brilliant twists that I didn't see coming'

'One of the most gripping stories I've read for a long while'

'I was hooked and didn't want it to end'