Rosemary & Thyme (2003)

S3E8 Enter Two Gardeners

Rosemary happily spends time gardening at an outdoor theater alongside Laura, especially since her cousin Charles is rehearsing for an amateur play. However, the excitement turns to horror when an actor is unexpectedly shot dead by a prop gun that, unbeknownst to everyone, was loaded with real bullets instead of blanks. As the investigation unfolds, the two gardeners begin to suspect that someone might be trying to sabotage the production—or that a deeper motive could be behind the tragic incident.