In the present, after serving 15 years in prison for the murder of Alexandra Forrest, Daniel Gallagher is paroled with the goals of reconnecting with his family and proving his innocence. In the past, 2008, Dan celebrates his 40th birthday and first meets the charming colleague whose death would eventually lead to his incarceration and the destruction of the life he knew.

In the past, a look into Alex’s personal and professional life outside of Dan and a retelling of the events of their affair from her perspective. In the present Dan reconnects with Beth and hoping to find evidence to exonerate himself, begins his investigation with Mike resulting in a visit to Brooker.