How to care for blooming begonia in the autumn-winter period?

Give me a red running one with big beautiful flowers. I read a lot of information and looked at a bunch of photos, but I still didn’t understand what type I have - tuberous or beautifully flowering. What to do with it when it stops blooming? Otherwise, they say about tuberous plants that they need to be dug up and placed in the cold. Where can I find this cold in the apartment?