Dean Lajeunesse doesn't want to follow in his father's footsteps. He's not yet fifty, but his memory is starting to fail him. He vividly recalls how dementia whittled away at his dad and doesn't want his own teenaged son, Aidan, to see him suffer the same fate. Of course, he could just be overreacting. Maybe it's the stress of his on-again, off-again relationship with Valerie, his long-time live-in girlfriend, or the feeling that he's not measuring up as a father that's making him absent-minded. But before he can understand what's happening to him, he's dragged home to the sickbed of his...