The Sullivan sisters have a big problem. On Christmas Day their rich and imperious grandmother gathers the family and announces that she will soon die…and has cut the entire family out of her will. Since she is the source of almost all their income, this means they will soon be penniless.
Someone in the family has offended her deeply. If that person comes forward with a confession of her (or his) crime, submitted in writing to her lawyer by New Year’s Day, she will reinstate the family in her will. Or at least consider it.