In this supernatural thriller, Kevin Costner plays Joe Darrow, a physician mourning the death of his wife Emily (Susannah Thompson) in a bus accident in South America, where she was providing medical outreach. Wracked by grief, Joe works extra shifts at the hospital to take his mind off the tragedy, but the intense workload triggers his short temper and some careless mistakes. His officious boss (Joe Morton) forces Joe to take time off, but Joe feels obligated to check in on his wife's pediatric patients, fulfilling a promise he made before she left. Visiting the ward, Joe starts to believe that Emily is using the near-death experiences of her terminal patients to communicate with him, through images the children report seeing in their dreams, and symbols they are inexplicably compelled to draw. While the children see Joe as a kindred spirit, the hospital staff worries about how these interactions are agitating them. At home, Joe begins finding other ethereal evidence of his wife's attempt to contact him from beyond the grave, some of it featuring the image of a dragonfly, which was the shape of the birthmark on her shoulder. His friends and a caring neighbor (Kathy Bates) worry that Joe is losing his marbles, especially as his quest becomes more frantic, putting his job in jeopardy.