Simon & Simon (1981)

S4E8 Break a Leg, Darling

A stage actress finds herself in danger as tensions rise between her and her co-star, who just happens to be her ex-husband. The animosity between them escalates, leading to a series of threatening encounters that put her safety at risk. As their professional rivalry intensifies, she must navigate the complexities of their past relationship while trying to protect herself from the fallout of their bitter conflict.