Viggo Mortensen plays artist David Shaw
A Perfect Murder on IMDB
Steven Taylor (Michael Douglas) is a Wall Street hedge fund manager who has risen a long way to achieve his riches. His successful investments and speculations allow him to live an extravagant upper-class lifestyle with his beautiful and much younger wife, Emily (Gwyneth Paltrow). Unfortunately for Taylor, his investments are unravelling, and he knows he is going to need his wife's personal fortune to maintain his status and lifestyle. Emily seems like a devoted, faithful wife, but in reality, she is having an affair with a penniless painter, David (Viggo Mortensen), and is considering leaving her husband.
Although she thinks herself safe, Steven knows everything about the affair, and has also been able to uncover the painter’s dark past. He pays the artist a visit and confronts him with knowledge about the affair and the fact that Steven knows about the artist’s prison time and past con games against rich women. He also sees the wedding ring that Emily left. All seems lost for the artist, until Steven makes him an offer. He is willing to pay $500,000 in cash for the death of his wife. Steven has already laid out a detailed plan, which will supply him with a firm alibi and keep the murder from being traced to his wife’s lover.
read more on Wikipedia