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'2 Guys, a Girl and a Pizza Place' - Psycho Halloween
In the first of many Halloween-killing-spree episodes on our list, "2 Guys, a Girl and a Pizza Place" brings us Psycho Berg (Ryan Reynolds) tying up Real Berg and killing his friends one by one. Ultimately the friends must decide who is the real Berg and who is psycho. Perhaps it was foreshadowing, since career-wise Ryan Reynolds has killed his co-stars since the show ended.