Beauty & the Bratva Books 1-3
Mika Lane
1) Cruel Promise
2) Brutal Ruin
3) Vicious Revenge
while not required, you may like to read the novella, My Bratva Christmas, first.
These books is intended for adults. They feature a heroine with multiple love interests as well as mature themes including kidnapping, murder, spanking, edging, and page-turning sexy times.