Certain Witness

Six people remember committing the same murder. Only one of them could have done it.

When Dr. Elias Cross is found murdered inside the Halcyon Behavioral Research Center, his daughter Claire seems like the obvious suspect. She remembers the argument. She remembers the weapon in her hand. She even remembers striking the fatal blows.

There's just one problem. Parts of her memory are impossible.

Then five more people confess to the exact same crime.

Psychologist Dr. Malcolm Mercer has spent his career studying the dangerous gap between what people remember and what actually happened. As he digs into Cross's research, he discovers experiments designed to manipulate memory, manufacture certainty, and make people believe experiences that were never their own.

And someone has been very carefully preparing for this murder.

Every witness is certain. Every confession contains the truth. And none of them can be trusted.

Because the closer Mal gets to discovering who killed Elias Cross, the more disturbing the question becomes:

What happens when the one witness you can't trust is yourself?