Jack Williams

When Tony and Emily Hughes travel to France with their 5-year-old son Oliver, their family holiday turns into a nightmare when Oliver disappears into the crowd of a busy French street. (imdb)

A serial killer has left a bunch of dead bodies all over the city, all of them burned with acid so their faces are erased. Told in flashback (Killer-Rellik) the series describes the events that preceded the death of the supposed murderer to end with the incidents that set the plot in motion.