Telly (Moore) lost her 9-year-old son Sam (Kovaleski in flashbacks) in a plane crash. Her husband (Edwards) is a bit worried that even after a year she won't stop wallowing in grief. Then everything about Sam starts disappearing, and her husband and shrink (Sinise) both tell her she's finally emerging from a mental illness that created false memories of a child never existed. But Telly suspects otherwise, and with another grieving parent (West) she sets out to solve the mystery.

It's a gripping premise, and for a while the film really gets our heads spinning as we try to figure out what could possibly be going on here, especially when X-Files-type Feds get involved, and a mystery man (Roache) starts appearing in suspicious places. And as it crosses the line from believable psychological thriller to gonzo mayhem craziness, we still hope that there might be a logical explanation.

Moore is quite simply far too good for this kind of film and its one-note heroine. She manages to stay on the verge of tears for the entire saga, including fast-paced action scenes and moments of throwaway comedy. And no one does verge-of-tears like Moore! She wins us over immediately; so how can we doubt her sanity? The surrounding cast are also a bit too good, although we quickly figure out who to trust. And Ruben has some jolts up his sleeve that literally leave us gasping!

So it's a pity that the film is both wafer thin and appallingly silly. Themes of letting go and slipping memories are never examined in a meaningful way, while the story gets increasingly unconvincing. But it's still fascinating, combining a seriously emotional core idea with a narrative that gets progressively more ludicrous until you're absolutely dying to know how it could possibly end.