Seen that before and I think the film must be a bit of a set up. I mean, 130 cats in such a small space? Imagine how many litter trays you would need. And in one of the previous reports, a neighbour was reported as saying that the smell wasn't too bad - ie there was some smell that was strong enough for the neighbours to be aware of it. I suspect that the apartment has had a bit of a clean up prior to filming.