The Dark Hours (2005)

The thirty and something years old psychiatrist Dr. Samantha Goodman has an incurable brain tumor that has just started to grow. Felling totally stressed, she decides to spend the weekend in her cottage with her husband, the writer David Goodman, and her sister Melody. She unexpectedly arrives in the cabin and finds a bottle of champagne in the refrigerator. Later, a young man, Adrian, asks for help due to the cold weather and once in the house, he shows a gun and brings his partner, the violent sexual offender and Samantha's former patient Harlan Pyne. Along the night, Harlan forces the family to participate in twisted games, where truths are disclosed.