I also can’t work out why the stupid pharmacist won’t go to the police. He’s in trouble already and it’ll only get worse. Surely it’s better to hand himself in now.
I think that when people are as desperate as he is, they don't think straight - and TBH, "grassing up" the Slavic Mafia is not going to help him much.
In jail or out of jail, they will get him. His family may be put into witness protection, but he will always have that fear that they will find his daughters and do something to them. He's painted himself into a corner, and the only way he genuinely has of getting out of it is to take his own life (and he may - though I think he'll get killed).
I do feel a bit sorry for him - I think his wife and girls want, want, want and don't give a thought to how he is going to pay for it (there's no suggestion that Mrs Bhatti has a job or profession).
His wife is doing a "Red Queen" trying to keep up with her obviously much wealthier sister, his daughters want the same as their cousins get, even though their dad obviously isn't paid nearly as much as the aunt's husband, his FIL controls the purse strings and keeps him on a short leash as the manger of a couple of his pharmacies - he's bullied and browbeaten from every side, so desperate he's even trying to stop his daughters drinking bottled water, as though in the scheme of things the pennies that would save would make any difference. In his way, he's just as coercively controlled and poor battered Jo is. He has no financial independence or even a say in what happens in the family - did you see how his wife didn't even wait for his reply before confirming to her sister that they'd be going to the party?
I wonder, too, if his SIL having a son has put her up in the dynastic pecking order? Many families (and not just in Asian culture) favour boys.
Faisal is now in the position of being even worse off - financially he isn't going to be making anything because the "Mafia" are taking it - and more than he ever wanted to try to sell; he will have to rob his FIL's business to a degree that is sure to be noticed fairly soon; his wife and daughter's are demanding more and more; he is terrified for his family's safety, and he doesn't have any way of getting off this roller-coaster he's stepped onto except to jump into the void.
He's buggered!