I cannot praise this mini series enough, it's without a doubt my favorite series of all time. The writing has multiple layers (much like Mr Marlowes skin) and is perfectly executed in perhaps BBC's finest production to date. Gambon's portrayal of a man tortured by the denial of his past is painfully honest, but there are fine actors all around. I don't want to give to much away and ruin the pleasure for you, so I'll have to wrap it up.
Rarely have I been able to say that a tv series changed me and my perception on life, but this one did. The perfect antidote to mind-melting popcorn movies.