Name of book?

I read this book a few years ago and I forgot the title and author but here s what I remember. The front cover was red and had a black silhouette of a women. The story was about a man who I think is an author or journalist who ends up meeting this woman on a ship during some sort of event or wedding. They click and... show more I read this book a few years ago and I forgot the title and author but here s what I remember. The front cover was red and had a black silhouette of a women. The story was about a man who I think is an author or journalist who ends up meeting this woman on a ship during some sort of event or wedding. They click and end up meeting regularly but the women refuses to meet during daytime. I think further on she ends up lying about having cancer to get money and he assassinates people to get money to pay for her treatment. I may be wrong with that bit but that s all I remember.
Thanks
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