Interwined stories between a police officer, his daughter, a taxi driver and a Yakuza leader discover a prostitute’s murder while surviving the nuclear apocalypse in Tokyo, Japan.

Thanks for the elaboration – make this yours, leaning towards:
“The lives of a Yakuza boss, a police officer and his daughter, and a taxi driver intertwine in three tales of survival and the death of a prostitute in post-apocalyptic Tokyo, Japan”

Take care.

I revised it.

1) A police officer, his daughter, a porn actress and a hitman.
2) Nuclear.