I accidentally used plastic wrap instead of foil wrap over the salmon in the toaster oven. There was a flame. When i checked the salmon, the cling wrap was gone. Did it melt into thge salmon? Is the salmon safe to eat?
There are multiple types of film wrap, which are different plastics. No matter what yours was made from, it almost certainly partially burned up, partially melted, and partially had other heat-based reactions leaving unknown remains on your food, possibly including dioxins, which are quite toxic.
In any of these cases, I would not risk finding out.
Discard the fish.