19ac7c3e_Season_1___The_Mask_Wiki__Summary
[#] 15 [Title] Split Personality [Summary] 
The Mask breaks in half during Walter's attempt to gain it, resulting in both Stanley and the Mask existing at the same time. When an old high school bully of Stanley's named Chet Bozzack gets the other half, the two personalities must work together to piece the mask together.
Season 1 - The Mask Wiki
Summary