So the plot is kinda like this
Doom (who real identity could be Peter Possum from the pistol packin possum the one in the poster on Maroon Office and an ex-star of maroon cartoons) start a bank robbing spread before Teddy and Eddy Valiant almost catching him, he ends dropping a piano on them hurting Eddy and killing Teddy, then disappear probably expecting things to cold off, years later with the money he robbed buy the elections to be judge of toontown.
He found out about the blueprint for this abandon project for the city to build a "freeway" and for some reason got horny with that idea, so in order to make this project possible he planned this conspiracy first he funds the Cloverleaf company and trough that company bought the railroad, dismantling the railroad to force people to use his freeway that is the first step of his plan the second step is buying Toontown to destroy the city and build his freeway where before was the city, all of this with the money he stole.
Why is he doing this, what benefit he would get from all this effort? I have no idea
Also want to buy Maroons studio ¿for what reason? I have no idea either, it has absolutely no sense to me unless I'm missing something, but there is a problem Acme don't want to sell Toontown he wants to give the property to the toons, Maroon does want to sell Maroons studios, but Cloverleaf would not buy his property unless Acme sell his, (so maybe Doom really dint have any interest to buy Maroons studio but agreed to buy it if Maroon convince Marvel Acme of selling toontown through any mean) Maroon planned to blackmail Acme so trough threats of ending Rogers career he forced Jessica to play "Patty cake" with Acme and hire Eddy to take the pictures pretending he hired Eddy because he is worried about Roger, them instead of using the pictures to force Acme to sell he shows them to Roger ¿for what reason? I don't know
Acme have given his Solemn word to the toons he will give them the town, as a joke he gives his will to Jessica only it is writing in appear and disappear ink, the same ink he dropped in Eddy shirt when they were in the club and told him it was just invisible ink to appease eddy who was about to hit him, when Jessica the will is only a blank page so she left it in her dress room, trying to talk to his wife roger go to the club, she is not there so he wrote her a poem in the blank paper she left, the poem is too powerful and romantic, and he took it with him to give it to her in person so he goes to his house looking for her without knowing it is the will that give toontown to the toons, when he gets to his house to give the love letter to Jessica Roger see outside the weasels waiting for him
During at some point of the night after Acme leaves Jessica in her dressing room and Roger wrote the poem Judge Doom took advantage of the situation and killed Acme in similar manner he killed Teddy but instead of a Piano he dropped a safe over his head, believing there is no will and 24 hours after Acmes death the toontown would be... I don't know, at sell to the public? This way he framed Roger for the murder being the rabbit the logical suspect with a motive, as a judge he could execute Roger without trail being that toons apparently have no rights and closing the case for the murder of Acme
L.t. Santino Eddie ex-boss tell him acme was killed by Roger and took him to the crime scene which looks similar to his brothers' death, there he meets Judge Doom who to flex his power and probably as an intimidation technique decide to execute the cutest animated shoe ever existed in a sadistic and cruel display of psychopathy by slowly dipping him in a chemical vat of turpentine, acetone and benzene (essentially oil, paint thinner and film dissolver) which he calls "The Dip". A substance created by him which is the only method to kill a toon who outside of that are invulnerable,
Eddy learns trough baby Herman about the will and the solemn word Acme give to the toons of leave to them the city of toontown, eddy is not convinced, but later he accidentally noticed the will in acmes pocket in the pictures he took at the club.
Without a place to go and without knowing Teddy was murdered years ago Roger remember Eddy and Teddy Valiant are the detective who always help toons so he goes to Eddies office, but he does not know where eddy lives so ask everybody until the liquor store guy told him, he enters through the mailbox and fall sleep waiting, until eddy find him in his bed scaring the shit of each other.
The weasels without much effort find out roger was hiding at Eddies office and go looking for him, knowing it would be a death sentence to roger if he gets caught and starting to suspect Maroon use him to kill Acme and blame roger, decide to hide roger in Dolores bar while try to get to the bottom of all of this