Fatal Attraction: when love become obsession FA

Love triangle
Story of three people Luke, Scott and Veronica

Luke is attractive good looking 42 year man, he lost his only love kiara in a car accident 20 years back which took him years to back on track but he didn't forget her and never loved again until the point, he saw veronica on his nephew party who resemble kiara

veronica is 22 year old young women madly in love with Scott but, never admit it. She's shy beautiful and somewhere inside she knows Scott loves her too .
Scott is a eligible bachelor. He's the only heir of multi billionaire company, dream of every young girl but his eyes were only on her.
who is veronica and why she look like Kiara does her affections for Scott change and experienced passionate feelings for luke ?
what will Luke do will he let her go or will he battle with his own nephew for her?