There is a bunch of Gialli that tell a story about an inheritance. Most of them tend to be rather crime movies than Gialli in the classic sense.
This film by Alfonso Brescia also tells a story about an inheritance that spreads murder, and in the first half of the film, only one killing happens (in the opening scene), and then the film goes on rather as a family drama than a Giallo. But in the middle of the film, the title happens (a member of the family is indeed found nude and killed in a park), and from now on, it's a typical Giallo. The bodies are piling up (the murder scenes are not very graphic, but there are some stylish moments), and towards the climax, there is the usual surprise as the identity of the killer is revealed. The revelation is as implausible as often with Gialli, but it works better than in other similarly mediocre ones.
Brescia's direction is nothing special, the lead actors are only average, but there is some fine supporting cast lead by Adolfo Celi as the investigating Police inspector. So, the first half is a bit dreary, but the second half is surely capable of satisfying Giallo afficionados.