Summer, Cape Cod. Every member of the Gardner family is hiding a secret. Ken, a businessman with political ambitions, is caught in an internet chatroom and forced into couples therapy. Abby is ashamed to still depend on her brother’s goodwill to sustain her life as an artist. Adam, their father and brilliant oceanographer, decides to come off his bipolar disorder medication to make one last scientific breakthrough. And then there’s Steph: a new person living on the periphery, who harbours a secret that will change everything . . .