For all the brutal kills, supernatural showdowns, and bloodthirsty villains that Buffy the Vampire Slayer served up over its seven-season run, the scariest Buffy episode to me is the one I least expected. As someone who has grown up obsessing over the darkest corners of horror - from Cronenberg to Carpenter - I thought I was immune to the creepy curveballs that TV could throw my way. Then I saw “Go Fish.” Nestled late in season 2, it’s an episode most remember for being monster-of-the-week filler, but underneath the surface (literally), it's a body horror nightmare hiding in plain sight. It’s chilling, disturbing, and loaded with effects that still hold up today.