“Windfall” (*1/2 out of four) was a stultifying suspense melodrama about a man (Jason Segel) who breaks into the vacation home of a billionaire (Jesse Plemons) but things go astray when he and his wife (Lily Collins) visit unexpectedly. Leaden and talky story actually gets slower as it goes along and for anyone who actually sticks with it all the way through- it doesn’t so much end as stop although believe me no one will likely be complaining. Collins (daughter of music legend Phil) is solid but this is unlikely to provide the “windfall” that her career needs.