Imposter: The Man Who Came Back from the Dead

Is the bookish, peaceful Arthur Knight really Nicholas Rossi, a sexually aggressive narcissist and crook? Surely Rossi's tell-tale tattoos will settle the case?

As evidence linking Arthur Knight to Nicholas Rossi emerges, Rossi's stepdad, an Engelbert Humperdinck impersonator, shares insights into his stepson's difficult early years