Doppelganger tale 'Enemy' spins a sinister web

Jake Gyllenhaal gives two excellent performances in "Enemy." He stars as Adam, a bearded, rumpled Toronto history professor sleepwalking his way through life. He stars as Daniel, a slick, self-absorbed actor who is Adam's physical duplicate. Each has a loveless, but not sexless, relationship with physically similar, emotionally distant blondes. Adam and Daniel trespass on each other's life, and for a time it looks as if this will be a suspenseful tale of swapped identities and adultery. Then it ...