“Ryde” (*1/2 out of four) was a grisly, heavy-handed horror thriller about a new ride-sharing service a la Uber that brings strangers a little too close together and how one deranged stranger in particular (David Wachs) starts picking up strangers and randomly killing them. All this movie does is just randomly kill your time. Director Brian Viciglia shows some style and flash (and obviously watched “Taxi Driver” a few times before filming) but the result is slight and forgettable.