Some secrets never leave.

Iris and Gabriel have just arrived home from a make-or-break holiday. But a shock awaits them. One of their closest friends, Laure, is in their house. The atmosphere quickly becomes tense as she oversteps again and again: sleeping in their bed, wearing Iris' clothes, even rearranging the furniture.

Laure has walked out on her husband--and their good friend--Pierre, over his confession of an affair and a secret child. Iris and Gabriel want to be supportive of their friends, but as Laure's mood becomes increasingly unpredictable, her presence takes its toll.

Iris and Gabriel's only respite comes in the form of a couple new to town. But with them comes their gardener, who has a checkered past.

Soon, secrets from all their pasts will unravel, some more dangerous than they could have known.