DOPPELGANGER & SHRIEK versus SPIDER-MAN
Maximum Carnage: Carnage Rising (Marvel comics)
Where: Spider-man Unlimited #1 When: May 1993
Why: Tom DeFalco How: Ron Lim
The story so far...
Cletus Kasady was supposed to be locked away in Ravencroft maximum security prison where he couldn't harm anyone, but for a man like Carnage you can take the man out of the symbiote, but not the symbiote out of the man.
Slaughtering his way through security and psychiatric staff Carnage picks himself a dame up on the way, in the form of the equally homcidal and psychotic - Shriek.
Their swooping freedom in New York City sees them quickly running afoul a mindless wandering doppelganger of Spider-man, and after he puts up a brave fight against Carnage, Shriek convinces her murderous beau to adopt him. Thus, the sicko Brady Bunch begin their reign of Maximum Carnage.
Full Article: http://secretearths.blogspot.com/2006/12/doppelganger-shriek-versus-spider-man.html