Fan Casting Imaginary Friends

It’s a story of a rich guy called Zack who got run over by a truck. Strangely, no bones were broken, but he starts to see his childhood imaginary friends. And they start to turn him into a hitman to save the Yakuza leader’s youngest daughter from a greedy and psycotic kidnapper who wants money from the rich, so he can conquer the world. But believe it or not, he also kidnapped his children and wife. To catch this guy, he will need the help of his imaginary friends, an expert hitman, the Yakuza's eldest kid and probably.... His neighbour who secretly has a huge stash of weapons