Police say it happened at the Beta Theta Pi house on South Columbia Street around 1:30 p.m. Monday.
"I have a man that just came in the house, attacked me, tried to lock me in the bathroom so he could attack me, threatened to kill me, now I have several students holding him trying to keep him here until you can get here," the woman tells a 911 operator.
The victim, a 39-year-old cook, told police the suspect, Troy Watson, knocked on a basement window and then pushed his way inside.
A male caller to 911 said he didn't recognize Watson. The student said fraternity brothers came to the woman's rescue when they heard her screaming.
Watson faces several charges including felony kidnapping.