The new Hallmark Channel whodunit, “Mystery Island: Play for Keeps,” premieres Sunday, August 17 at 9 p.m. ET. Stream the ...

A luxury island retreat spirals into suspicion and danger” in the third “Mystery Island” movie airing tonight. “Mystery Island: Play For Keeps” will premiere at 9 p.m. Sunday, Aug. 17, on the Hallmark ...

Hallmark’s Mystery Island series returns with a third film that might not have what it takes to kill it with audiences this time around.