I'm new here. I'm french so in advance sorry if I make mistakes.
Since a very long time ago, I search a TV movie not very well-known that I watched in my youth. It's a similar movie from Rear Window by Alfred Hitchcock and Disturbia with Shia Labeouf but it's not these movies.
It's about a teenage boy obliged to stay at home and who witnesses the neighbor's murder of his redheaded wife.
It's a little blurry in my memory, but I think that he warns his mother and they call the police. However, when the police come, the woman is still alive.
During the movie, with his friend and a girl that he loves they will do their investigation. I remember that the girl often climbs in the witness-boy's room by the window. They flirt together. The witnessing boy will enter in the neighbor house while his two friends will distract the neighbor.
If I remember correctly, they use a walkie-talkie. At the end, they learn that the neighbor has indeed killed his wife and the reason that his wife was still alive was because the sister of the murdered woman had replaced her.
It was a plot between the husband and the sister of the murdered woman.
At the end, the boy is allowed to go out. On a baseball field, he finds again the girl that he loves and who helped him, they kiss and it's the end.