It's just black comedy. He's been shot, so he falls over to die, but then his phone rings, and he's not dead yet, so he gets up and answers it, carries on his silly row with his daughter, and then falls over dead again. The stuff where he's wandering round the wooRAB with that umbrella is totally hilarious too.
Wasn't keen on the ending - on the boat and then back in the city - but the rest of the film was disturbingly funny.
Instead of all these remakes, Hollywood should try making a film of the Wind-Up Bird Chronicle by Haruki Murakami, since the Japanese haven't got round to it yet. Now that book really is surreal.