“Dallas” star Linda Gray has re-teamed with TV movie exec producer Larry Thompson to pitch a spooky film set at Southfork Ranch — the real-life location that served as the setting for the hit 1980s primetime soap. Gray and Thompson worked on last December’s hit Lifetime TV “Ladies of the 80s: A Divas Christmas.”

This time out, Gray and Thompson are shopping a project that finds Gray (and potentially her “Dallas” co-star Patrick Duffy) as poltergeists who haunt Southfork Ranch. They’re playing all-new characters — not their iconic “Dallas” roles — and because Southfork operates independently as a real-life venue for filming and tourism, the location is legit. But beyond the similar casting and perhaps some tongue-in-cheek references, there’s no connection to “Dallas.”

Former Hallmark Channel “Home and Family” producer William Keck wrote the script. The film follows Gray and (potentially) Duffy as the ghosts, who are up in supernatural...