Nati is living her dream in the City of Love. She's a blossoming leader in the perfumery world, her boyfriend Owen is by her side and even her dog Sal is feeling the love.But things take a turn at her birthday party. She's celebrating her fortieth on a river cruise down the Seine when one of the guests, who also happens to be a big name in perfumery, drowns. If that wasn't bad enough Nati's ex-husband of all people is the top suspect.Will Nati find the real killer so she can properly enjoy her time in the spotlight, or worse yet, will she discover that her ex-husband is not only a cheater, but also a murderer?