Jenny loves to house-sit: looking after a stranger's enviably perfect home and pretending to be someone else - just for a bit. Her latest booking is a beautiful, disheveled old rectory in the Home Counties owned by the uber-successful Lewis family. Freed of teaching duties for the summer, and her own teenagers spending time with her objectionable ex, Jenny readies herself for a life of walk-in larders and sparkling water taps. Battling to control the riotous family dog and stay cool in an unrelenting heat-wave, she discovers skeletons in the Lewis closet that further threaten to disrupt her idyll. But then a seductive new friendship offers her a surprise second chance: to open herself up to love again and to finally live life on her own terms.