In a fictitious trial, twelve members of a jury must decide whether journalist Ian Bailey is guilty of the 1996 murder of French filmmaker Sophie Toscan Du Plantier. Based on real events, the film reconstructs, through the discussions between these twelve people, a case that ultimately invites the viewer to draw their own conclusions.

Colm Meaney
as Ian Bailey

Aidan Gillen
as Hamilton Barnes

Jim Sheridan
as Juror 1

Tristan Heanue
as Juror 2

John Connors
as Juror 3

Gilbert Johnston
as Juror 4

Elena Spautz
as Juror 5

Zahara Moufid
as Juror 6

Brendan Conroy
as Juror 7

Vicky Krieps
as Juror 8