'... Things I Know To Be True is unsettling, even disturbing. It is, in fact, a contemporary tragedy in which the family is the noble hero, brought down by the fatal flaw of self-prevarication. Each character is compelled to confront the fearful consequences of their concealment. The early image of the loving, unified family is gradually dispelled as Pip reveals her true feelings. Mark struggles with his sexuality, and Ben succumbs to false ambition. ...'