Weekend of Mystery was created on 2006-08-15.
It's usually called a Murder Mystery weekend. A group of people get together for a weekend and have a scenario created with actors or friends in which there is a "murder" and the guests have to figure out who the murderer is.
Out on the Weekend was created in 1972.
Weekend with Velez was created in 1986.
The Weird Weekend was created in 2000.
Weekend Live was created in 2002.
Weekend In Wallop was created in 1984.
Nero's Weekend was created in 1956.
The Osterman Weekend was created in 1972.
The Weekend News was created in 1996.
Working for the Weekend was created in 1981.
Quiet Weekend was created in 1946.
Death Weekend was created in 1976.