"Monster and Co" most likely refers to "Monsters, Inc." (Dutch: "Monsters en co."), a 2001 American animated comedy film by Pixar Animation Studios and Walt Disney Pictures. The story centers around two monsters, Sulley and Mike, who work at Monsters, Inc., a factory that generates power by scaring children. They discover that laughter generates more energy than screams, and the film follows their adventures with a little human girl named Boo. The film is well-known, featuring prominent voice actors and a popular storyline that has also led to a TV series continuation on Disney+.
If more details about the film, its plot, or related media like the TV series or games are desired, further information can be provided.