You get 4 Streams with the 4K Plan in your home.
I do not get why so many are upset with these plans ( for use in your Household).
It is the same rules that DirecTV and Dish have.
I always use the Convenience Store / Candy Bar Analogy-
You are in a store with your sister, grab Two Candy Bars, put one in your pocket, pay for only one.
Go outside, you give your sister the one in your pocket, you keep the one you paid for, is that stealing?
Now, you share your Netflix password with your sister for use in her home while you also use it in your home, is that stealing?