“The Ghost Behind,” a short film by Davidson College alum Caroline Rumley, is about music, addiction and the loss of her brother Jim, also a Davidson grad. Her work has been screened at venues internationally, including the Sundance Film Festival. The 12-minute film, along with with a live Q&A with the filmmaker, will be screened via Zoom Oct. 15 from 7:30 to 9:30 pm.