Haunted...Twisted... yeah we have that @ your library

Before I Go to Sleep by S. J. Watson

Publishers Weekly-

Memories—real, false, and a bit of both—are at the heart of British author Watson's haunting, twisted debut. Christine Lucas awakens each morning in London with no idea who she is or why she's in bed with a strange man, until he tells her that his name is Ben and they've been married for 22 years. Slowly, Christine learns that she has amnesia and is unable to remember her past or retain new memories: every night when she falls asleep, the slate is wiped clean. Dr. Nash, her therapist, has encouraged her to write in a journal that she keeps secret from Ben. Christine realizes how truly tangled—and dangerous—her life is after she sees the words "don't trust Ben" written in her journal, whose contents reveal that the only person she can trust is herself. Watson handles what could have turned into a cheap narrative gimmick brilliantly, building to a chillingly unexpected climax. 

 

Cold Vengeance by Douglas Preston and Lincoln Child

Publishers Weekly-

By picking up the action right where Fever Dream ends off, bestsellers Preston and Child sacrifice some accessibility in their 11th thriller featuring unconventional FBI agent Aloysius Pendergast. Pendergast is still reeling from discovering that the death of his beloved wife, Helen, 12 years before from a lion attack was actually the result of a cold-blooded scheme. Desperate to learn the truth about the people behind her murder, the agent embarks on a perilous hunting expedition with her brother, Judson Esterhazy. While in the wilds of Scotland, Esterhazy tells Pendergast a surprising secret that undercuts all the agent's assumptions about what actually happened. His usual sidekick, NYPD Lt. Vincent D'Agosta, plays a more muted role than usual, but Corrie Swanson, who assisted Pendergast in Still Life with Crows, returns to help. The authors do a good job of showing the lengths Pendergast is willing to go to in his quest, but because the book reads much like the middle of a trilogy, first-timers would do well to start elsewhere in the series.