The Sister in Law (1975) is a Drama film that follows robert and Edward are brothers involved in a web of adultery and deceit. They share Edward's wife and his mistress and a mission to deliver a package of jewels across the Canadian border, but the mission turns out to be deadly. The Sister in Law is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 3.3 out of 10 from 14 votes. Fans of drama movies may also want to explore similar titles below.