You searched for: “cacospectamania
cacospectamania (s) (noun), cacospectamanias (pl)
An obsession to stare at something which is repulsive or vulgar: "After finding some animal protection information leaflet, Duncan couldn't take his eyes off the ugly pictures of animals being mistreated and slaughtered. It was certainly a case of cacospectamiania, being so absolutely engrossed in these pictures."