Buried inside this psychological thriller, which takes a brilliant turn in its last 15 minutes, is a fantastic half-hour Twilight Zone episode. The twist comes as a total surprise but is, in retrospect, perfectly set up; certain scenes that seemed awkward or contrived suddenly come into focus and even Bruce Willis' somnambulistic performance makes perfect sense. Successful Philadelphia-based child psychologist Malcolm Crowe (Bruce Willis) takes a body blow to the ego when a former patient (Donnie Wahlberg) breaks into his home, shoots him and then commits suicide, all the while cursing Crowe for not having helped him. Months later, Crowe's recovered from his physical wounds, but he's subdued and insecure, and his marriage is disintegrating; he and wife Anna (Olivia Williams) seem to be living parallel lives, never touching or speaking. Crowe sees the possibility of redemption in another troubled child, Cole Sear (Haley Joel Osment), a reclusive, isolated boy who eventually confesses that he sees ghosts. Though a whiz with the clever premise, it's a full hour before writer/director M. Night Shyamalan throws us the sop of conclusive evidence that this isn't a glum drama about child abuse, when everything from the title to the ad campaign make it a foregone conclusion that no, the kid's not imagining all that spooky stuff.