The gravity of sunlight

"Fidelity is strained in the heated atmosphere that surrounds the expatriates who teach at the college in Kampala in the '70s. Agnes's husband, John tells her she can will herself to remain in love with him, but she doesn't think she can. Then an attractive new arrival captures her imagination; the distance from her imagination to her heart is not far. The locals observe, sympathizing and despising. While looming over all is the imminent ascension to power of General Idi Amin."--BOOK JACKET.