But as soon as they arrive, cracks begin to appear in their marriage. Mark is still texting his ex-wife. Kat is lying about a new friendship. And one of them is keeping an explosive secret about the past.

The couple in Causeway Cottage are hiding something - and the truth can be deadly...

A gripping page-turner with a shocking twist, perfect for fans of Lucy Clarke, Alice Feeney and Shari Lapena.