One day, the mother was a mother but then, one night, she was quite suddenly something else...

At home full-time with her two-year-old son, an artist finds she is struggling. She is lonely and exhausted. Her husband, always travelling for his work, calls her from faraway hotel rooms. One more toddler bedtime, and she fears she might lose her mind.

Instead, she starts gaining things, surprising things that happen one night when her child will not sleep. New appetites, new instincts. And from deep within herself, a new voice...