It's impossible to name just three out of all the different genres, however Double Indemnity will certainly be one of them, the other two will vary depending on my mood.
" I killed Dietrichson - me, Walter Neff, insurance salesman, 35 years old, unmarried, no visible scars... until a while ago, that is.
Yes, I killed him. I killed him for money and for a woman. I didn't get the money and I didn't get the woman"