Book excerpt: A brood of famous and longing-to-be-famous creative artists have gathered at their summer home during the Williamstown Theatre Festival. When the weekend takes an unexpected turn, everyone is forced to improvise, inciting a series of simmering jealousies, romantic outbursts, and passionate soul-searching. Both witty and compelling, THE COUNTRY HOUSE provides a piercing look at a family of performers coming to terms with the roles they play in each other’s lives.