Stringer might not exactly be the best private detective you've ever read about, but at least he tries; you can't deny him that.
Stringer is having a bad week. First, one of his clients tries to shoot him; then said client's estranged wife wants him to break into the former marital home. No sooner has he dealt with that calamity when a gang of diamond smugglers abruptly make their presence felt, convinced that Stringer is in possession of their loot and not inclined to take rejection kindly. Throw in a suicide that might just be a murder, a cash flow problem that is fast approaching critical, and a cantankerous pigeon fancier who believes that Stringer has amorous intentions towards his daughter, our hero would much rather be somewhere else at the moment; anywhere else...
And the police? They're anything but sympathetic; indeed, the only plan they can devise is to set a trap for the diamond smugglers, with Stringer as the bait.
Like the man says: Who'd be a private detective...