Scared and faced with losing someone he cared for, Ryder made a bargain in the heat of the moment that will come back and change his life forever.  Five years later, when the sexy Ace Belmont comes to collect Ryder’s debt, the price is Ryder’s soul, but he may be paying with his heart as well.

Ace lost his soul a long time ago. Now he walks the earth enslaved by evil as a soul collector.  Ace wants badly to retain his soul and atone for his sins. There is no place in his existence for love, but that may be unavoidable when it comes to Ryder.

Payment Due is more on the darker side than I expected.  There’s a sad tone to the story, which I guess should be expected for a story about lost souls.  The characters are strong, beautiful, and sexy, especially Ryder and Ace.  There’s a great passion between them, but I found it hard to connect with them.  I did care for Steven, and I wished things were different for him, and I cared for Julian who appears later in the book.  The book, as a whole, is dark, eerie, and beautiful all at once. It’s full of heartbreak, loneliness, and need -- a lot of need. There is the need to be loved, the need to be wanted, the need to be remembered, the need to make a difference, and the need to make amends.  Although I wasn't totally captivated by Payment Due, I did appreciate it and found it to be a story worth reading.  It made me think about the fragility and strengths of one's soul and to be aware of promises made in a moment of weakness and despair. You never know who’s listening and will hold you to them.