In the wake of a spiraling chain of events in Sicily, a twisting web of lies and scheming threatens to reveal a disturbing — and deadly — truth.

As a long-held secret unravels, Helene's sudden choice puts Carl in a perilous position. Scarlett receives devastating news that shatters her world.

A shocking discovery puts Carl and Helene on edge. Scarlett grows suspicious of Adam after an awkward surprise sours their romantic Stockholm lunch.

Two couples arrive in Sicily and the Stockholm archipelago for a holiday home swap, but unsettling details about their new houses make it hard to relax.