Psycho Wedding Crasher (2017)

Since she started working as a dressmaker for her Aunt Daisy, Jenna has seen dozens of brides getting happily married in her gorgeous wedding gowns. Jenna longs to have a white wedding of her own and to find a handsome man who will take her away from her abusive Aunt. When Jenna meets bride-to-be Marci and boyfriend Glenn, she realizes Glenn is the man of her dreams and now she will stop at nothing to have him all to herself and to make her dreams come true - even if she has to kill the bride.