Informerisasophisticated,character-driventhrilleraboutRaza,ayoung,secondgenerationPakistanimanfromEastLondon(Nabhaan Rizwan )whoiscoercedbyGabe,aCounter-Terrorismofficer(PaddyConsidine)togoundercoverandinformforhim.Gabe,whohasapastheisunwillingtoexpose,isjoinedbyHolly,hisnewandambitiouspartner(BelPowley)whoseendlesscuriositybecomesthreateningtohim.Asthecentralcounterterrorisminvestigationheatsup,thestakesforallthreegethigherandhigher.Informertellsastoryaboutidentityinaworldwherelinesareincreasinglybeingdrawnandsidesarebeingtaken.Whathappenswhenyou,oryourfriends,familyorneighboursfallonthewrongsideofthatlineandthepersonalbecomespolitical?
