OK, I admit. I love the word caper.
LOOOONG story short.
Friends of ours did a very stupid thing and rented out their old house when they moved to their new home.
Now there is a huge mess, renters are not paying and of course due to COVID you can not evict non-paying renters. So 7 months of no rent. The lease has expired but the renters will not move.
So for the caper:
The plan, when the squatters leave the house (to go to work or whatever) our friends are moving back in. They are literally going to move back in and take over the house they own.
They have a plan and a team at the ready. Move-in, change the locks, remove the renters/squatters' belongings.
When the squatters return our friends are going to claim ignorance
"Who are you? We own this home. We have proof, we pay the mortgage, insurance, and taxes who are you?"
Our friends are going to tell the squatters to take them to court and see if they can get them (the owners) evicted.
Our friends are tired of being the ones to bear all the expenses and are going to reverse the roles.
We figure this will either work and they will be successful or end in a disaster but what do they have to lose?