Murder Mystery at Motel

Hi, I'm trying to find the title of an old black and white movie that may be a Hitchcock or earlier. There's a murderer who kills a woman by turning on the gas and hiding underneath floorboards. Can't remember the name for the life of me.

I am trying to come up with a letter to send to ski teams and clubs to introduce our ski packages we offer at my motel. I am having the hardest time. I am looking for sample letters specifically for my needs.

I am to trying to identify a murder mystery film, possibly from the 1970's. The setting is a large house (mansion?) near water, possibly an island. A group of people are picked off one at a time, (agatha christie style). When the murders take place, all that is shown of the killer is the hands...

I've watched Blazing Saddle a ton of times. I'm not going to apologize for still thinking it's funny. But a friend of mine suggested a movie that he said has the best shoot-out he's ever seen: Open Range I agree. What's your favorite western?

Now this is very strange....My boyfriend of 4 months with whom I broke merely because of his hot and cold attitude, comes around again and wants to meet me at the motel and says wants to spend some time together. Now I am wondering someone who is not contacting me that much, doesn't text me often...