Should we talk psychopaths?

S.J. Watson's Before I Go To Sleep is a psychological thriller about Christine Lucas, who loses her memory every night. When she wakes up in the morning, she thinks she's in her early twenties, or in her teen years. She's shocked to see the wrinkles on her face every morning when she looks in the mirror at her middle-aged face. Her husband Ben dutifully takes care of her, reminding her every day who she is, who he is, what their life together has become.

Christine has just started working with a new doctor who thinks he can help. At his behest, she has started keeping a journal, which she rereads each day to try to heal her fractured mind.

But of course, it's not that simple. (Is it ever simple?)

She had lost her memory originally because of a desperately violent attack many years before, and her attacker was never caught. She believes that his identity is still locked in her broken memory. But can she crack the code to her own mind before he returns to finish what he started?

In B.A. Paris' Behind Closed Doors, Grace falls in love and marries Jack, the seemingly perfect lawyer who vows to take care of both her and her disabled younger sister. They have a beautiful house and throw dinner parties that would make Martha Stewart proud, Grace is a masterful cook and a talented artist. Their life together seems perfect . . . from the outside. But what happens behind those doors may be another story.

Both novels offer page-turning thrills and intense suspense as these strong women face the evil that has placed them in danger and fight to free themselves from the monsters that cage them. Through twists and dead ends, hopes and setbacks, these women know that they are in life or death situations. Are they clever enough to survive?

If you want to know the answer, you'll have to read the books.