"Something's starting to happen to one of our characters - maybe he's been infected with some virus... Maybe he's going crazy... Maybe he's just gaining weight. Whatever it is, it's usually not directly explained, and we don't see him changing on-screen... It's just that one day, he looks a little bit... off. And each time we see him after that, the change is a little more noticeable, usually until it reaches either hilarious or horrific levels. As mentioned above, this is always played for either drama or laughs. May also overlap with Metamorphosis, which is often a gradual process."@en . . . . . "Something's starting to happen to one of our characters - maybe he's been infected with some virus... Maybe he's going crazy... Maybe he's just gaining weight. Whatever it is, it's usually not directly explained, and we don't see him changing on-screen... It's just that one day, he looks a little bit... off. And each time we see him after that, the change is a little more noticeable, usually until it reaches either hilarious or horrific levels. As mentioned above, this is always played for either drama or laughs. A Super-Trope to Virus Victim Symptoms, Evil Makeover, and Madness Makeover and a Sister Trope of Transformation At the Speed of Plot. May also overlap with Metamorphosis, which is often a gradual process. And Then John Was a Zombie is sometimes the end result. See Fisher Kingdom (more specifically the second variant) for when simply being in a certain place can have this effect. Examples of Slow Transformation include:"@en . . . . . . . . . "Slow Transformation"@en . . . . .