Dan presents Emma with a perfect vision of a family, and embarks on a journey to rediscover a terrible truth about a misremembered friendship.

Cast: Greg Davies, Stephanie Cole, Roisin Conaty, Mike Wozniak, Gwyneth Powell, Jeany Spark, Isy Suttie, Ashley McGuire, Ruth Bratt, Stella Gonet, James Greene, Elliot Levey, Tommy Bard, Chris James, Ariella Remus-Elliot