Mia returned to Liz's apartment after 2 AM. She had a good time with Fernando (a young man whose drink offer she accepted). They talked, laughed, danced and kissed few times. She didn't allow him to escort her home, but they exchanged phone numbers before she left the Black Rose in a cab.
She entered the apartment slowly, confident that her two friends are already there, and she didn't want to wake them up. Liz and Bri left the club shortly after midnight, so they should be home. Sleeping.
Mia tripped on a pillow which was laying in the middle of the living room. She remembered that it was there when they headed out for the night. Why is that still there? Did Liz and Bri ignore it when they got in?