Detective Ellery Queen has to solve a series of murders where the victims were killed in numerically descending ages, the male victims were strangled with blue cords and the female victims with pink ones.
Fear No Evil
1969
6
Psyko Ferret
2000
0
Hellinger's Law
1981
7
Stonestreet: Who Killed the Centerfold Model?
1977
0
The Ghost Writer
1990
6
The Murder That Wouldn't Die
1980
2
Carrie
2002
6
Colorado C.I.
1978
0
Search for the Gods
1975
4
The Healers
1974
0
Rooster
1982
2
Little Darlings
1982
0
Gibby
2012
10
Delirium
2014
6
Mirrorball
2000
8
Great Day
1983
0
Velvet
1984
1
Nevada Smith
1975
5
Sailor Moon
1994
8
Travis McGee
1983
4