The body of a young migrant is found hanging from a tree.
There are no signs of struggle. No indication that it is anything other than a tragic suicide. Except for a note, pinned to the man's trousers, that reads "The dead cannot speak."
A murder investigation begins with DI Manon Bradshaw at the helm. But with the other migrants unwilling to talk to her, and protests taking place on the streets, hatred is starting to drown out the facts.
Can Manon uncover the truth before there's another victim?