Fool Me Once by Harlan Coben

Maya Burkett is an army veteran and recent widow raising her two-year-old daughter, Lily, on her own.  A friend of Maya's gives her a secret nanny cam so Maya can make sure her daughter is being taken care of while Maya is not at home.  One day, as Maya is looking at the footage, she's stunned to see her dead husband, Joe, with Lily. Can Joe really still be alive or is someone playing games with her? Maya is further puzzled when the police confess that the gun that was used to kill Joe was also the one used in her sister Claire's death four months ago. Not sure who she can trust, Maya knows she must find the answers she needs in order to move on. In Fool Me Once, Coben has written another thriller that will keep you turning the pages late in the night.  It will be published in March.