Disgraced but brilliant researcher Dr. Mark Moore arrives at the remote Sam Heard Clinic high in the Sierra Nevada mountains, nursing a battered reputation and a last shot at redemption. Invited by Dr. Fielding to work on his groundbreaking memory machine—a device that boosts short-term recall in Alzheimer’s patients by supplying a missing enzyme—Mark isn’t expecting a warm welcome.

He certainly doesn’t get one from Dr. Susan Pace, the fiercely principled therapist who believes human connection—not machines—is the key to healing. Sparks fly, tensions flare… and then Susan’s own mother becomes a patient.

When the machine stirs a long-buried memory, her mother reveals chilling details of a murder that took place years ago in the burned-out barn Mark passed on his way to the clinic. Suddenly the invention’s potential stretches far beyond medicine—it could solve crimes.

As snow falls and Christmas draws near, Mark and Susan find themselves caught between suspicion and trust, old wounds and new hope. The road to love is anything but smooth—but miracles have a way of appearing when you least expect them, especially at Christmastime.